VULNERABILITY INTELLIGENCE

CVE-2026-28560

CVSS score5.5 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-02-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Description

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-79

Primary references