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 4 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
456new WordPress flaws this week
390,714entries in the database

8 results

  • Jun 22, 2025A vulnerability has been found in MarkText up to 0.17.1 and classified as problematic.CVE-2025-6492 · Other software · reported by VulDBMedium 5.5

    A vulnerability has been found in MarkText up to 0.17.1 and classified as problematic. Affected by this vulnerability is the function getRecommendTitleFromMarkdownString of the file marktext/src/main/utils/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 19, 2023DOM-based XSS in src/muya/lib/contentState/pasteCtrl.js in MarkText 0.17.1 and before on Windows, Linux and macOS allows arbitrary JavaScript code to run in theCVE-2023-2318 · Other software · MarkText · reported by info@starlabs.sgHigh 8.6

    DOM-based XSS in src/muya/lib/contentState/pasteCtrl.js in MarkText 0.17.1 and before on Windows, Linux and macOS allows arbitrary JavaScript code to run in the context of MarkText main window. This vulnerability can be exploited if a user copies text from a malicious webpage and paste it into MarkText.

    Product
    MarkText
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 24, 2023A vulnerability has been found in MarkText up to 0.17.1 on Windows and classified as critical.CVE-2023-1004 · Other software · Marktext · reported by VulDBMedium 5.3

    A vulnerability has been found in MarkText up to 0.17.1 on Windows and classified as critical. Affected by this vulnerability is an unknown functionality of the component WSH JScript Handler. The manipulation leads to code injection. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The identifier VDB-221737 was assigned to this vulnerability.

    Product
    Marktext
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 10, 2022A stored cross-site scripting vulnerability in marktext versions prior to v0.17.0 due to improper handling of the link (with javascript: scheme) inside the docuCVE-2022-21158 · Other software · MarkText · reported by vultures@jpcert.or.jpMedium 5.4

    A stored cross-site scripting vulnerability in marktext versions prior to v0.17.0 due to improper handling of the link (with javascript: scheme) inside the document may allow an attacker to execute an arbitrary script on the PC of the user using marktext.

    Product
    MarkText
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 4, 2022Mark Text v0.16.3 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability which allows attackers to perform remote code execution (RCE) vCVE-2022-25069 · Other software · Marktext · reported by MITRECritical 9.6

    Mark Text v0.16.3 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability which allows attackers to perform remote code execution (RCE) via injecting a crafted payload into /lib/contentState/pasteCtrl.js.

    Product
    Marktext
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 29, 2022MarkText through 0.16.3 does not sanitize the input of a mermaid block before rendering.CVE-2022-24123 · Other software · Marktext · reported by MITRECritical 9

    MarkText through 0.16.3 does not sanitize the input of a mermaid block before rendering. This could lead to Remote Code Execution via a .md file containing a mutation Cross-Site Scripting (XSS) payload.

    Product
    Marktext
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 5, 2021Mark Text through 0.16.3 allows attackers arbitrary command execution.CVE-2021-29996 · Other software · Marktext · reported by MITRECritical 9.6

    Mark Text through 0.16.3 allows attackers arbitrary command execution. This could lead to Remote Code Execution (RCE) by opening .md files containing a mutation Cross Site Scripting (XSS) payload.

    Product
    Marktext
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 16, 2020Mutation XSS exists in Mark Text through 0.16.2 that leads to Remote Code Execution.CVE-2020-27176 · Other software · Marktext · reported by MITREHigh 8.3

    Mutation XSS exists in Mark Text through 0.16.2 that leads to Remote Code Execution. NOTE: this might be considered a duplicate of CVE-2020-26870; however, it can also be considered an issue in the design of the "source code mode" feature, which parses HTML even though HTML support is not one of the primary advertised roles of the product.

    Product
    Marktext
    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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