What’s Vulnerable › Vulnerabilities

CVE-2023-3998: wpDiscuz <= 7.6.3 - Insecure Direct Object Reference to Post Rating Increase/Decrease

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-20 · updated 2026-06-17
• Weakness: CWE-639

Description

The wpDiscuz plugin for WordPress is vulnerable to unauthorized modification of data due to a missing authorization check on the userRate function in versions up to, and including, 7.6.3. This makes it possible for unauthenticated attackers to increase or decrease the rating of a post.

Affected products

• gVectors wpDiscuz: through 7.6.3

References

• https://plugins.trac.wordpress.org/browser/wpdiscuz/trunk/utils/class.WpdiscuzHelperAjax.php#L886
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9d09bdab-ffab-44cc-bba2-821b21a8e343?source=cve
• https://plugins.trac.wordpress.org/browser/wpdiscuz/trunk/utils/class.WpdiscuzHelperAjax.php#L886
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9d09bdab-ffab-44cc-bba2-821b21a8e343?source=cve

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