CVE-2026-28560
low-risk
Published 2026-02-28
wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows script injection via forum URL data output into an inline script block using json_encode without the JSON_HEX_TAG flag. Attackers set a forum slug containing a closing script tag or unescaped single quote to break out of the JavaScript string context and execute arbitrary script in all visitors' browsers.
Do I need to act?
-
0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (3)
Release Notes
https://wordpress.org/plugins/wpforo/#developers
Third Party Advisory
https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unsafe-json-enc...
26
/ 100
low-risk
Severity
21/34 · High
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal