CVE-2026-104464

Description

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make server-side GET requests by supplying an unvalidated actor URL to the Bazar abonnements sync action. Attackers can target internal hosts or cloud metadata endpoints and chain attacker-controlled outbox first/next links, with fetched responses stored as readable Bazar entries.

CVSS Vector

References

• https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wcjp-v62j-p5xm
• https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-bazar-abonnements-sync-actor-parameter
• https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wcjp-v62j-p5xm