What is CVE-2026-104451?

CVE-2026-104451 is a medium-severity vulnerability in Yeswiki, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-10-02.

How severe is CVE-2026-104451?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CSRF in Yeswiki

CVE-2026-104451

YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in RevisionsHandler that allows attackers to restore old page revisions through GET requests lacking CSRF token validation. Attackers can lure write-capable users into a top-level navigation with the restoreRevisionId parameter, silently overwriting current page content with stale or vandalized revisions.

Vulnerability class: CSRF (Cross-Site Request Forgery)

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

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

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-352 — Cross-Site Request Forgery (CSRF)

References

github.com/YesWiki/yeswiki/security/advisories/GHSA-vj5g-974q-7ff3 (vendor-advisory)
www.vulncheck.com/advisories/yeswiki-before-4.6.7-csrf-page-revision-restore-vi… (third-party-advisory)

Frequently asked questions

What is CVE-2026-104451?: CVE-2026-104451 is a medium-severity vulnerability in Yeswiki, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-10-02.
How severe is CVE-2026-104451?: Medium severity. CVSS v3 base score is 4.3 out of 10.