All vulnerabilities
CVE-2026-116824GHSA-xcwg-2pj5-3qm4

YesWiki before 4.7.0 Stored XSS via Referer Header in referrers_sites Handler

YesWiki yeswiki
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in4.7.0Fixed versionCVE List
Published26 Oct 2026Updated 26 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability in handlers/page/referrers_sites.php that allows unauthenticated attackers to inject scripts via crafted Referer headers. Attackers can send a Referer hostname containing HTML metacharacters that renders unescaped, executing JavaScript for any referrer-sites page visitor to perform same-origin authenticated actions.

Text from CVE List

Affected versions 2

  • yeswikiaffected: all versions before 4.7.0CVE List
  • yeswikiunaffected: 4.7.0CVE List

References 2