Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck

CVE-2026-104464YesWiki before 4.6.7 SSRF via Bazar abonnements sync actor parameter

High 8.6

In plain English

A high-severity server-side request forgery in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)8.6High

Exploit odds (30 days)0.3%top 78.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
YesWiki	yeswiki	0 – before 4.6.7

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

References

GitHub Security Advisory (GHSA-wcjp-v62j-p5xm) vendor-advisory
VulnCheck Advisory: YesWiki before 4.6.7 SSRF via Bazar abonnements sync actor parameter third-party-advisory