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CVE-2026-75980— BetterDocs <= 4.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Heading 'id' Attribute in Post Content

Quick assessment

Affected
wpdevteam BetterDocs – AI Documentation, Knowledge Base, MCP Server, Docs, Wikis, FAQ & Chatbot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件 “BetterDocs – AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot” 存在存储型跨站脚本攻击（Stored Cross-Site Scripting）漏洞，影响版本 4.8.1 及更早的所有版本。该漏洞源于输入数据清理不足以及输出时缺少转义处理。 这使得拥有“贡献者”或更高权限的已认证攻击者，能够在页面中注入任意 Web 脚本；当用户访问该页面时，这些脚本将会被执行。 具体而言，攻击载荷之所以能绕过 ，

CVSS 6.4 · Medium

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-75980

Vulnerability Information
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Vulnerability Title
BetterDocs <= 4.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Heading 'id' Attribute in Post Content
Source: CVE Program / CVE List V5
Vulnerability Description
The BetterDocs – AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Heading 'id' Attribute in Post Content in all versions up to, and including, 4.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit survives wp_kses_post because entity-encoded quotes in a heading id attribute are treated as a single legitimate attribute value at save time; the dangerous payload only materialises after process_content_for_toc() calls html_entity_decode() on the stored content and the broken id is extracted by a lazy regex before being echoed unescaped into the Table of Contents output.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wpdevteam BetterDocs – AI Documentation, Knowledge Base, MCP Server, Docs, Wikis, FAQ & Chatbot 0 ~ 4.8.1 -

II. Public POCs for CVE-2026-75980

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III. Intelligence Information for CVE-2026-75980

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Patches & Fixes for CVE-2026-75980 (3)

Security Blog Posts for CVE-2026-75980 (1)

Other References for CVE-2026-75980 (1)

IV. Related Vulnerabilities

Same vendor: wpdevteam
Same weakness: CWE-79

V. Comments for CVE-2026-75980

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