CVE-2026-104472

YesWiki before 4.6.7 contains a missing authorization vulnerability in the attachment download handler that allows unauthenticated attackers to bypass page read ACLs. Attackers can request the download handler with a known page tag and file parameter to retrieve confidential attachments from read-restricted pages.

Score

CVSS 4.0 8.7 High

Status

Deferred - disclosure@vulncheck.com

Published

2026-10-02

Last modified

2026-10-02

Weaknesses

CWE-862

Affected products

• Yeswiki (Yeswiki)

References

• https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7cj2-9pgf-vcw2
• https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-missing-authorization-via-attachment-download-handler