CVE-2026-116824

EUVD-2026-110531
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 7.39%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
yeswikiyeswiki
𝑥
< 4.7.0
CNA
Common Weakness Enumeration
References
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-xcwg-2pj5-3qm4
https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-stored-xss-via-referer-header-in-referrers-sites-handler