CSRF in Yeswiki
CVE-2026-116204
YesWiki before 4.7.0 contains a cross-site request forgery vulnerability in the despam action (tools/security/actions/despam.php) that lets unauthenticated attackers delete or restore pages through an administrator's session. Attackers can plant an auto-submitting raw HTML form on a wiki page, so an administrator who views it posts clean, suppr[], or rev[] parameters that delete PagePrincipale, configuration pages, or overwrite current content.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.
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
Weakness classification (CWE)
References
- github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72 (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.7.0-csrf-via-despam-admin-action (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116204?
- CVE-2026-116204 is a high-severity vulnerability in Yeswiki, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2026-10-25.
- How severe is CVE-2026-116204?
- High severity. CVSS v3 base score is 8.1 out of 10.