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CVE-2026-22209

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

Published: Mar 13, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.2%
Top 87.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

wpdiscuzgvectors
CMS Plugin
Web & CMS Plugins / wordpress-plugin
wpDiscuzgVectors
CMS Plugin
Web & CMS Plugins / wordpress-plugin
gvectorscommercialWeb & CMS Pluginsaka wpforo forum, wpdiscuz

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://wordpress.org/plugins/wpdiscuz/
wordpress.org
https://wordpress.org/plugins/wpdiscuz/#developers
wordpress.org
https://www.vulncheck.com/advisories/wpdiscuz-before-cross-site-scripting-via-unescaped-custom-css-in-style-tag
vulncheck.com

Timeline

Published
Mar 13, 2026
Last Updated
Mar 26, 2026

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