CVE-2026-104466

5.4 MEDIUMpublic exploit available

Published 2026-10-02 · Updated 2026-10-02

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

YesWiki before 4.6.7 contains a stored cross-site scripting vulnerability in formatters/wakka.php that allows users who can edit pages or post comments to inject event handlers by placing quotes in markdown image URLs. Attackers can store a crafted markdown image whose src breaks out of the attribute to add an onerror handler, executing JavaScript in viewers' browsers, including administrators.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weaknesses

CWE-79

Public exploit & PoC references

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7pv9-pwm8-cwwr
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7pv9-pwm8-cwwr

All references

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7pv9-pwm8-cwwr
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-stored-xss-via-wakka-markdown-image-src-attribute
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7pv9-pwm8-cwwr

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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