Vulnerability · Published Oct 31, 2025 · Assigned by Wordfence
CVE-2025-12094OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA) <= 1.2.53 - Unauthenticated IP Header Spoofing
Medium 5.3
In plain English
A medium-severity security flaw in OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA) from oopspam. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| oopspam | OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA) | 0 – through 1.2.53 |
Weakness: CWE-693 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N