Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 2 h ago

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.

1,764exploited flaws on CISA’s list
35added in the last 30 days
472new WordPress flaws this week
390,714entries in the database

9 results

  • Dec 9, 2025COMMAX WebViewer ActiveX Control 2.1.4.5 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by providing excessively long CVE-2021-47719 · Other software · COMMAX Co., Ltd. · reported by VulnCheckHigh 8.7

    COMMAX WebViewer ActiveX Control 2.1.4.5 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by providing excessively long string arrays through multiple functions. Attackers can exploit boundary errors in Commax_WebViewer.ocx to cause buffer overflow conditions and potentially gain code execution.

    Product
    COMMAX WebViewer ActiveX Control
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 3, 2025A Cross-Site Scripting (XSS) vulnerability in the Rendering Engine component in Apryse WebViewer v11.1 and earlier allows attackers to execute arbitrary code viCVE-2024-57240 · Other software · Apryse · reported by MITREMedium 5.4

    A Cross-Site Scripting (XSS) vulnerability in the Rendering Engine component in Apryse WebViewer v11.1 and earlier allows attackers to execute arbitrary code via a crafted PDF file.

    Product
    Webviewer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 29, 2024A vulnerability was found in Apryse WebViewer up to 10.8.0.CVE-2024-4327 · Other software · Apryse · reported by VulDBLow 3.5

    A vulnerability was found in Apryse WebViewer up to 10.8.0. It has been classified as problematic. This affects an unknown part of the component PDF Document Handler. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 10.9 is able to address this issue. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-262419. NOTE: The vendor was contacted early about this disclosure and explains that the documentation recommends a strict Content Security Policy and the issue was fixed in release 10.9.

    Product
    WebViewer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 23, 2024 A XSS payload can be uploaded as a DICOM study and when a user tries to view the infected study inside the Osimis WebViewer the XSS vulnerability gets triggereCVE-2023-7238 · Other software · Orthanc · reported by ics-cert@hq.dhs.govHigh 7.1

    A XSS payload can be uploaded as a DICOM study and when a user tries to view the infected study inside the Osimis WebViewer the XSS vulnerability gets triggered. If exploited, the attacker will be able to execute arbitrary JavaScript code inside the victim's browser.

    Product
    Osimis DICOM Web Viewer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 31, 2022 Broken access controls on PDFtron WebviewerUI in M-Files Hubshare before 3.3.11.3 allows unauthenticated attackers to upload malicious files to the applicationCVE-2022-39019 · Other software · M-Files · reported by vdp@themissinglink.com.auMedium 6.3

    Broken access controls on PDFtron WebviewerUI in M-Files Hubshare before 3.3.11.3 allows unauthenticated attackers to upload malicious files to the application server.

    Product
    Hubshare
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 15, 2021PDFTron's WebViewer UI 8.0 or below renders dangerous URLs as hyperlinks in supported documents, including JavaScript URLs, allowing the execution of arbitrary CVE-2021-39307 · Other software · Pdftron · reported by MITREMedium 6.1

    PDFTron's WebViewer UI 8.0 or below renders dangerous URLs as hyperlinks in supported documents, including JavaScript URLs, allowing the execution of arbitrary JavaScript code.

    Product
    Webviewer UI
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 5, 2019An issue was discovered in NVR WebViewer on Hanwah Techwin SRN-472s 1.07_190502 devices, and other SRN-x devices before 2019-05-03.CVE-2019-12223 · Other software · Hanwha-security · reported by MITREHigh 7.5

    An issue was discovered in NVR WebViewer on Hanwah Techwin SRN-472s 1.07_190502 devices, and other SRN-x devices before 2019-05-03. A system crash and reboot can be achieved by submitting a long username in excess of 117 characters. The username triggers a buffer overflow in the main process controlling operation of the DVR system, rendering services unavailable during the reboot operation. A repeated attack affects availability as long as the attacker has network access to the device.

    Product
    Srn-472s Firmware
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 14, 2018Web Viewer for Hanwha DVR 2.17 and Smart Viewer in Samsung Web Viewer for Samsung DVR are vulnerable to XSS via the /cgi-bin/webviewer_login_page data3 parameteCVE-2018-11689 · Computers, phones & browsers · Samsung · reported by MITREMedium 6.1

    Web Viewer for Hanwha DVR 2.17 and Smart Viewer in Samsung Web Viewer for Samsung DVR are vulnerable to XSS via the /cgi-bin/webviewer_login_page data3 parameter. (The same Web Viewer codebase was transitioned from Samsung to Hanwha.)

    Product
    Smartviewer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 1, 2009Stack-based buffer overflow in EAI WebViewer3D ActiveX control (webviewer3d.dll) in SAP AG SAPgui before 7.10 Patch Level 9 allows remote attackers to execute aCVE-2007-4475 · Network & remote access · SAP · reported by cret@cert.orgHigh 9.3

    Stack-based buffer overflow in EAI WebViewer3D ActiveX control (webviewer3d.dll) in SAP AG SAPgui before 7.10 Patch Level 9 allows remote attackers to execute arbitrary code via a long argument to the SaveViewToSessionFile method.

    Product
    Sapgui
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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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