CVE-2024-38527

ZenUML is JavaScript-based diagramming tool that requires no server, using Markdown-inspired text definitions and a renderer to create and modify sequence diagrams. Markdown-based comments in the ZenUML diagram syntax are susceptible to Cross-site Scripting (XSS). The comment feature allows the user to attach small notes for reference. This feature allows the user to enter in their comment in markdown comment, allowing them to use common markdown features, such as `**` for bolded text. However, the markdown text is currently not sanitized before rendering, allowing an attacker to enter a malicious payload for the comment which leads to XSS. This puts existing applications that use ZenUML unsandboxed at risk of arbitrary JavaScript execution when rendering user-controlled diagrams. This vulnerability was patched in version 3.23.25,

• CWE-79

• https://github.com/mermaid-js/zenuml-core/commit/ad7545b33f5f27466cbf357beb65969ca1953e3c
• https://github.com/mermaid-js/zenuml-core/security/advisories/GHSA-q6xv-jm4v-349h
• https://github.com/mermaid-js/zenuml-core/commit/ad7545b33f5f27466cbf357beb65969ca1953e3c
• https://github.com/mermaid-js/zenuml-core/security/advisories/GHSA-q6xv-jm4v-349h

Published

Jun 26, 2024

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2024-38521Hush Line is a free and open-source, anonymous-tip-line-as-a…6.1
• CVE-2024-38522Hush Line is a free and open-source, anonymous-tip-line-as-a…6.3
• CVE-2024-38523Hush Line is a free and open-source, anonymous-tip-line-as-a…7.5
• CVE-2024-38524GeoServer is an open source server that allows users to shar…7.5
• CVE-2024-38525dd-trace-cpp is the Datadog distributed tracing for C++. Whe…7.5
• CVE-2024-38526pdoc provides API Documentation for Python Projects. Documen…7.2
• CVE-2024-38528nptd-rs is a tool for synchronizing your computer's clock, i…7.5
• CVE-2024-38529Admidio is a free, open source user management system for we…8.8
• CVE-2024-3853A use-after-free could result if a JavaScript realm was in t…7.5
• CVE-2024-38530The Open eClass platform (formerly known as GUnet eClass) is…9.8
• CVE-2024-38531Nix is a package manager for Linux and other Unix systems th…3.6
• CVE-2024-38532The NXP Data Co-Processor (DCP) is a built-in hardware modul…7.1