CVE-2026-28561

EUVD-2026-9110
wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows administrators to inject persistent JavaScript via forum description fields echoed without output escaping across multiple theme template files. On multisite installations or with a compromised admin account, attackers set a forum description containing HTML event handlers that execute when any user views the forum listing.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
gvectorswpforo_forum
2.4.0 ≤
𝑥
< 2.4.16
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://wordpress.org/plugins/wpforo/
https://wordpress.org/plugins/wpforo/#developers
https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unescaped-forum-description-in-templates