CVE-2026-22209CWE-79

wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag

Medium · published March 13, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
13.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00231 · 13.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-13T01:18Z
EPSS history
Timeline
  • 13 MAR 01:18Z
    wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag
    cvelistv5