CVE-2026-104464

EUVD-2026-91475
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.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
yeswikiyeswiki
𝑥
< 4.6.7
CNA
Common Weakness Enumeration
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