Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-23630— Docmost is vulnerable to stored Cross-Site Scripting (XSS) through Mermaid rendering

EPSS 0.05% · P14
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-23630

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Docmost is vulnerable to stored Cross-Site Scripting (XSS) through Mermaid rendering
Source: NVD (National Vulnerability Database)
Vulnerability Description
Docmost is open-source collaborative wiki and documentation software. In versions 0.3.0 through 0.23.2, Mermaid code block rendering is vulnerable to stored Cross-Site Scripting (XSS). The frontend can render attacker-controlled Mermaid diagrams using mermaid.render(), then inject the returned SVG/HTML into the DOM via dangerouslySetInnerHTML without sanitization. Mermaid per-diagram %%{init}%% directives allow overriding securityLevel and enabling htmlLabels, permitting arbitrary HTML/JS execution for any viewer. This issue has been fixed in version 0.24.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Docmost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Docmost是Docmost开源的一个开协作维基和文档软件。 Docmost 0.23.2及之前版本存在安全漏洞，该漏洞源于Mermaid代码块渲染未进行清理，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
docmostdocmost >= 0.3.0, < 0.24.0 -

II. Public POCs for CVE-2026-23630

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-23630

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: docmost
Same vendor: docmost
Same weakness: CWE-79

V. Comments for CVE-2026-23630

No comments yet

Leave a comment