CVE-2024-6704: Comments – wpDiscuz <= 7.6.21 - Unauthenticated HTML Injection

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-08-02 · updated 2026-06-17
Weakness: CWE-79

Description

The Comments – wpDiscuz plugin for WordPress is vulnerable to HTML Injection in all versions up to, and including, 7.6.21. This is due to a lack of filtering of HTML tags in comments. This makes it possible for unauthenticated attackers to add HTML such as hyperlinks to comments when rich editing is disabled.

Affected products

gVectors wpDiscuz: before 7.6.22 — fixed in 7.6.22

How to fix

Upgrade to a fixed version: gVectors wpDiscuz 7.6.22. Check the vendor advisory for mitigations.

References

https://plugins.trac.wordpress.org/browser/wpdiscuz/trunk/class.WpdiscuzCore.php#L335
https://plugins.trac.wordpress.org/changeset/3124810/
https://www.wordfence.com/threat-intel/vulnerabilities/id/fa3501a4-7975-4f90-8037-f8a06c293c07?source=cve

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