Vulnerability · Published Oct 25, 2026 · Assigned by VulnCheck

CVE-2026-116204YesWiki before 4.7.0 CSRF via despam Admin Action

High 8.1

In plain English

A high-severity cross-site 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 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.1%top 96.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
YesWiki	yeswiki	0 – before 4.7.0

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

References

GitHub Security Advisory (GHSA-cv88-hx5q-vq72) vendor-advisory
VulnCheck Advisory: YesWiki before 4.7.0 CSRF via despam Admin Action third-party-advisory