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CVE-2026-120428— PandaWiki 3.65.0 through 3.87.5 Stored XSS via /static-file/ PDF Query-String Bypass

Quick assessment

Affected
Chaitin PandaWiki
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.

PandaWiki 3.65.0 至 3.87.5 版本中存在存储型跨站脚本（XSS）漏洞。未认证的攻击者可通过 接口上传带有图片扩展名的 HTML 文件。攻击者可诱使管理员访问 ，从而绕过 Nginx 的附件内容类型头限制，使 HTML 内容以内联方式被浏览器渲染，进而窃取 JWT 令牌，实现会话劫持。

CVSS 6.1 · Medium
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I. Basic Information for CVE-2026-120428

Vulnerability Information
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Vulnerability Title
PandaWiki 3.65.0 through 3.87.5 Stored XSS via /static-file/ PDF Query-String Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
PandaWiki 3.65.0 through 3.87.5 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to upload HTML files with image extensions via /share/v1/common/file/upload. Attackers can lure administrators to /static-file/<key>?a=.pdf, bypassing the nginx attachment header to serve HTML inline and steal the panda_wiki_token JWT for session takeover.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Chaitin PandaWiki 3.65.0 ~ 3.87.5 -

II. Public POCs for CVE-2026-120428

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III. Intelligence Information for CVE-2026-120428

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Other References for CVE-2026-120428 (6)

IV. Related Vulnerabilities

Same vendor: Chaitin
Same weakness: CWE-79