CVE-2026-22209

MEDIUM

5.5

Description

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.

CVE Details

CVSS v3.1 Score5.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published3/13/2026

Last Modified3/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gvectors:wpdiscuz

Weaknesses (CWE)

CWE-79

References

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

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

https://www.vulncheck.com/advisories/wpdiscuz-before-cross-site-scripting-via-unescaped-custom-css-in-style-tag(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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