Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
27 results
Sep 2, 2026In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient integrity protection of dialog request parameters used by the RadEditor file browser may alCVE-2026-19219 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient integrity protection of dialog request parameters used by the RadEditor file browser may allow an attacker who has obtained certain application encryption key material to alter the folders the file browser reads from, writes to, and uploads into, potentially resulting in remote code execution.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 2, 2026In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient validation of client-supplied state in RadImageEditor may allow an attacker to influence whCVE-2026-18672 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient validation of client-supplied state in RadImageEditor may allow an attacker to influence which file is returned by the control's image cache, potentially exposing file contents outside the intended image directories.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, the obsolete RadChart component's ChartImage.axd handler is vulnerable to unauthenticated file read and CVE-2026-14932 · Other software · Progress Software · reported by security@progress.comMedium 6.5
In Progress® Telerik® UI for AJAX prior to v2026.2.708, the obsolete RadChart component's ChartImage.axd handler is vulnerable to unauthenticated file read and deletion of image-extension files within the application directory.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowingCVE-2026-14865 · Other software · Progress Software · reported by security@progress.comMedium 5.3
In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowing unauthenticated denial of service via recursive XML entity expansion.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of content submitted to the RadEditor PDF export feature may allow an authenticaCVE-2026-13192 · Other software · Progress Software · reported by security@progress.comMedium 6.5
In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of content submitted to the RadEditor PDF export feature may allow an authenticated attacker to trigger server-side requests to arbitrary hosts, resulting in outbound network connections and potential exposure of Windows authentication credentials.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the persistence utilities allows unsafe type instantiation from attacCVE-2026-13190 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the persistence utilities allows unsafe type instantiation from attacker-influenced persisted state, which can lead to remote code execution.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of the language parameter in the spell check handler may allow an attacker to inCVE-2026-13189 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of the language parameter in the spell check handler may allow an attacker to influence server-side file path resolution and trigger unintended server-side requests.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler request parameters may be tampered with, potentially altering dialog server-side behavior CVE-2026-13188 · Other software · Progress Software · reported by security@progress.comMedium 5.9
In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler request parameters may be tampered with, potentially altering dialog server-side behavior and enabling chained exploitation.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler provider type input may be tampered with, potentially altering dialog processing and enablCVE-2026-13187 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler provider type input may be tampered with, potentially altering dialog processing and enabling chained exploitation.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, a path traversal vulnerability in the file-based persistence storage provider can be exploited when the CVE-2026-13186 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX prior to v2026.2.708, a path traversal vulnerability in the file-based persistence storage provider can be exploited when the storage key is derived from user-controlled input, enabling attacker-controlled deserialization and remote code execution.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-cCVE-2026-13185 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing unauthenticated remote code execution.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, when Telerik.Upload.ConfigurationHashKey is absent and machineKey is not explicitly configured, upload mCVE-2026-13184 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX prior to v2026.2.708, when Telerik.Upload.ConfigurationHashKey is absent and machineKey is not explicitly configured, upload metadata integrity protection may fall back to a predictable default key, enabling attackers to forge protected upload metadata and unlock further exploit chains.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing diffCVE-2026-13183 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing differences, enabling remote attackers to recover protected metadata values.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload client-state processing can distinguish decrypt failures from invalid-JSON parse failuresCVE-2026-13182 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload client-state processing can distinguish decrypt failures from invalid-JSON parse failures, creating an oracle that reveals protected metadata values to remote attackers.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026In Progress® Telerik® UI for AJAX prior to v2026.2.708, forged upload metadata can influence AsyncUploadTypeName processing and trigger unsafe attacker-controllCVE-2026-13181 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX prior to v2026.2.708, forged upload metadata can influence AsyncUploadTypeName processing and trigger unsafe attacker-controlled type resolution, enabling remote code execution in affected deployments.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 22, 2026In Progress® Telerik® UI for AJAX versions 2024.4.1114 through 2026.1.421, the RadFilter control is vulnerable to insecure deserialization when restoring filterCVE-2026-6023 · Other software · Progress Software · reported by security@progress.comHigh 8.1
In Progress® Telerik® UI for AJAX versions 2024.4.1114 through 2026.1.421, the RadFilter control is vulnerable to insecure deserialization when restoring filter state if the state is exposed to the client. If an attacker tampers with this state, a server-side remote code execution is possible.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 22, 2026In Progress® Telerik® UI for AJAX prior to 2026.1.421, RadAsyncUpload contains an uncontrolled resource consumption vulnerability that allows file uploads to exCVE-2026-6022 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX prior to 2026.1.421, RadAsyncUpload contains an uncontrolled resource consumption vulnerability that allows file uploads to exceed the configured maximum size due to missing cumulative size enforcement during chunk reassembly, leading to disk space exhaustion.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 25, 2026In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary iCVE-2026-2878 · Other software · Progress Software · reported by security@progress.comMedium 5.3
In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary identifier, based on timestamp and filename, can enable collisions and file content tampering.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 14, 2025In Progress® Telerik® UI for AJAX, versions 2011.2.712 to 2025.1.218, an unsafe reflection vulnerability exists that may lead to an unhandled exception resultinCVE-2025-3600 · Other software · Progress Software · reported by security@progress.comHigh 7.5
In Progress® Telerik® UI for AJAX, versions 2011.2.712 to 2025.1.218, an unsafe reflection vulnerability exists that may lead to an unhandled exception resulting in a crash of the hosting process and denial of service.
- Product
- Telerik UI for ASP.NET AJAX
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 11, 2021An issue was discovered in Progress Telerik UI for ASP.NET AJAX 2021.1.224.CVE-2021-28141 · Other software · Progress · reported by MITRECritical 9.8
An issue was discovered in Progress Telerik UI for ASP.NET AJAX 2021.1.224. It allows unauthorized access to MicrosoftAjax.js through the Telerik.Web.UI.WebResource.axd file. This may allow the attacker to gain unauthorized access to the server and execute code. To exploit, one must use the parameter _TSM_HiddenField_ and inject a command at the end of the URI. NOTE: the vendor states that this is not a vulnerability. The request's output does not indicate that a "true" command was executed on the server, and the request's output does not leak any private source code or data from the server
- Product
- Telerik UI For Asp.net Ajax
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.compastebin.com
Dec 13, 2019Path traversal in RadChart in Telerik UI for ASP.NET AJAX allows a remote attacker to read and delete an image with extension .BMP, .EXIF, .GIF, .ICON, .JPEG, .CVE-2019-19790 · Other software · Progress · reported by MITRECritical 9.8
Path traversal in RadChart in Telerik UI for ASP.NET AJAX allows a remote attacker to read and delete an image with extension .BMP, .EXIF, .GIF, .ICON, .JPEG, .PNG, .TIFF, or .WMF on the server through a specially crafted request. NOTE: RadChart was discontinued in 2014 in favor of RadHtmlChart. All RadChart versions were affected. To avoid this vulnerability, you must remove RadChart's HTTP handler from a web.config (its type is Telerik.Web.UI.ChartHttpHandler).
- Product
- Telerik UI For Asp.net Ajax
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.telerik.comtelerik.com
Dec 11, 2019Progress Telerik UI for ASP.NET AJAX Deserialization of Untrusted Data VulnerabilityCVE-2019-18935 · Other software · Progress · reported by MITREExploitedRansomwareCritical 9.8
Progress Telerik UI for ASP.NET AJAX contains a deserialization of untrusted data vulnerability through RadAsyncUpload which leads to code execution on the server in the context of the w3wp.exe process.
- Product
- Telerik UI for ASP.NET AJAX
- On CISA’s list since
- Nov 3, 2021 (federal fix deadline May 3, 2022)
- What to do
- Attackers are using this now. Install Progress’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogpacketstormsecurity.compacketstormsecurity.com
Aug 23, 2017Telerik UI for ASP.NET AJAX Insecure Direct Object Reference VulnerabilityCVE-2017-11357 · Other software · Telerik · reported by MITREExploitedRansomwareCritical 9.8
Telerik UI for ASP.NET AJAX contains an insecure direct object reference vulnerability in RadAsyncUpload that can result in file uploads in a limited location and/or remote code execution.
- Product
- User Interface (UI) for ASP.NET AJAX
- On CISA’s list since
- Jan 26, 2023 (federal fix deadline Feb 16, 2023)
- What to do
- Attackers are using this now. Install Telerik’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogtelerik.comexploit-db.com
Aug 23, 2017Telerik UI for ASP.NET AJAX Unrestricted File Upload VulnerabilityCVE-2017-11317 · Other software · Telerik · reported by MITREExploitedCritical 9.8
Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX allows remote attackers to perform arbitrary file uploads or execute arbitrary code.
- Product
- User Interface (UI) for ASP.NET AJAX
- On CISA’s list since
- Apr 11, 2022 (federal fix deadline May 2, 2022)
- What to do
- Attackers are using this now. Install Telerik’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogpacketstormsecurity.comtelerik.com
Jul 3, 2017Progress Telerik UI for ASP.NET AJAX and Sitefinity Cryptographic Weakness VulnerabilityCVE-2017-9248 · Other software · Progress · reported by MITREExploitedCritical 9.8
Progress Telerik UI for ASP.NET AJAX and Sitefinity have a cryptographic weakness in Telerik.Web.UI.dll that can be exploited to disclose encryption keys (Telerik.Web.UI.DialogParametersEncryptionKey and/or the MachineKey), perform cross-site-scripting (XSS) attacks, compromise the ASP.NET ViewState, and/or upload and download files.
- Product
- ASP.NET AJAX and Sitefinity
- On CISA’s list since
- Nov 3, 2021 (federal fix deadline May 3, 2022)
- What to do
- Attackers are using this now. Install Progress’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogsecurityfocus.comtelerik.com
Dec 25, 2014Absolute path traversal vulnerability in the RadAsyncUpload control in the RadControls in Telerik UI for ASP.NET AJAX before Q3 2012 SP2 allows remote attackersCVE-2014-2217 · Other software · Progress · reported by MITREHigh 7.5
Absolute path traversal vulnerability in the RadAsyncUpload control in the RadControls in Telerik UI for ASP.NET AJAX before Q3 2012 SP2 allows remote attackers to write to arbitrary files, and consequently execute arbitrary code, via a full pathname in the UploadID metadata value.
- Product
- Telerik UI For Asp.net Ajax
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 26, 2014Cross-site scripting (XSS) vulnerability in Telerik UI for ASP.NET AJAX RadEditor control 2014.1.403.35, 2009.3.1208.20, and other versions allows remote attackCVE-2014-4958 · Other software · Telerik · reported by MITREMedium 4.3
Cross-site scripting (XSS) vulnerability in Telerik UI for ASP.NET AJAX RadEditor control 2014.1.403.35, 2009.3.1208.20, and other versions allows remote attackers to inject arbitrary web script or HTML via CSS expressions in style attributes.
- Product
- Asp.net Ajax Radeditor Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblogs.telerik.commaverickblogging.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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