CVE-2026-28560

MEDIUM

5.5

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.

Details CVE

Score CVSS v3.15.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisHIGH

Interaction utilisateurNONE

Publie2/28/2026

Derniere modification3/4/2026

Sourcenvd

Observations honeypot0

Produits affectes

gvectors:wpforo_forum

Faiblesses (CWE)

CWE-79

References

https://wordpress.org/plugins/wpforo/(disclosure@vulncheck.com)

https://wordpress.org/plugins/wpforo/#developers(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unsafe-json-encoding-in-inline-script(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.