What is CVE-2026-104464?

CVE-2026-104464 is a high-severity vulnerability in Yeswiki, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-10-02.

How severe is CVE-2026-104464?

High severity. CVSS v3 base score is 8.6 out of 10.

SSRF in Yeswiki

CVE-2026-104464

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-10-02 · last modified 2026-10-02.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Yeswiki

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/YesWiki/yeswiki/security/advisories/GHSA-wcjp-v62j-p5xm (vendor-advisory)
www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-bazar-abonnements-sy… (third-party-advisory)

Frequently asked questions

What is CVE-2026-104464?: CVE-2026-104464 is a high-severity vulnerability in Yeswiki, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-10-02.
How severe is CVE-2026-104464?: High severity. CVSS v3 base score is 8.6 out of 10.