What’s Vulnerable › Vulnerabilities

CVE-2024-12554: Peter’s Custom Anti-Spam <= 3.2.3 - Cross-Site Request Forgery via cas_register_post Function

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-18 · updated 2026-06-17
• Weakness: CWE-352

Description

The Peter’s Custom Anti-Spam plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.2.3. This is due to missing nonce validation on the cas_register_post() function. This makes it possible for unauthenticated attackers to blacklist emails via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• pkthree Peter’s Custom Anti-Spam: through 3.2.3

References

• https://plugins.trac.wordpress.org/browser/peters-custom-anti-spam-image/trunk/custom_anti_spam.php#L1081
• https://plugins.trac.wordpress.org/changeset/3208894/
• https://wordpress.org/plugins/peters-custom-anti-spam-image/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/3c52ca89-4f13-41da-bc10-80d212c6219c?source=cve

Get alerted when CVE-2024-12554 or the next vulnerability affects your stack