Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck

CVE-2026-104441YesWiki before 4.6.7 Unauthenticated SSRF via valeur Action

Medium 5.3

In plain English

A medium-severity server-side 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 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.4%top 70.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

YesWiki before 4.6.7 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch arbitrary hosts and ports via the {{valeur}} action's url parameter. Attackers can submit the action through the content parameter of handlers/page/render.php to probe internal HTTP services and read back response content matching fiche markup.

Affected products (as reported)

Vendor	Product	Versions
YesWiki	yeswiki	0 – before 4.6.7

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-pghp-rrp4-q666) vendor-advisory
VulnCheck Advisory: YesWiki before 4.6.7 Unauthenticated SSRF via valeur Action third-party-advisory