Medium severity · published Oct 2, 2026
CVE-2026-104441
YesWiki before 4.6.7 Unauthenticated SSRF via valeur Action
5.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
before 4.6.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104441
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104441
vendor-advisory
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-pghp-rrp4-q666
third-party-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-ssrf-via-valeur-action
More from yeswiki
9.8
CVE-2026-46670
YesWiki: Unauthenticated SQL Injection
9.8
CVE-2026-52778
YesWiki has Unsafe eval() in Formula Calculator - Remote Code Execution (RCE) & Denial of Service (DoS)
9.8
CVE-2025-46348
YesWiki is a wiki system written in PHP
9.8
CVE-2025-46347
YesWiki is a wiki system written in PHP
9.8
CVE-2018-1000641
YesWiki version <= cercopitheque beta 1 contains a PHP Object Injection vulnerability in Unserialising user entered parameter in i18n.inc.php that can result in execution of code,…