Description
The OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA) plugin for WordPress is vulnerable to IP Header Spoofing in all versions up to, and including, 1.2.53. This is due to the plugin trusting client-controlled forwarded headers (such as CF-Connecting-IP, X-Forwarded-For, and others) without verifying that those headers originate from legitimate, trusted proxies. This makes it possible for unauthenticated attackers to spoof their IP address and bypass IP-based security controls, including blocked IP lists and rate limiting protections, by sending arbitrary HTTP headers with their requests.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
oopspam OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA)
Default version status: unaffected
0 to ≤ 1.2.53affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b5137bc2-912b-4e25-966e-515e8d9fc21c?source=cve ↗
- https://plugins.trac.wordpress.org/browser/oopspam-anti-spam/tags/1.2.49/include/helpers.php#L268 ↗
- https://plugins.trac.wordpress.org/changeset/3386104/oopspam-anti-spam/trunk/include/helpers.php ↗