CVE-2026-116204
YesWiki before 4.7.0 CSRF via despam Admin Action
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| yeswiki YesWiki |
≥ 0; < 4.7.0 (affected, semver) 4.7.0 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.2 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H | CNA: VulnCheck |
| 4.0 / 7.2 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H | NVD: [email protected] |
Exploit evidence
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72
exploit · ADP: CISA-ADP
References
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72CNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-csrf-via-despam-admin-actionCNA: VulnCheck · third-party-advisory
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72ADP: CISA-ADP · exploit
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72[email protected]
- https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-csrf-via-despam-admin-action[email protected]
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72134c704f-9b21-4f2e-91b3-4a467353bcc0
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