OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA) <= 1.2.53 - Unauthenticated IP Header Spoofing
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
exploitation probability
0.3%top 75% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
oopspam · OOPSpam Anti-Spam: Spam Protection for WordPress Forms & Comments (No CAPTCHA)References
https://plugins.trac.wordpress.org/browser/oopspam-anti-spam/tags/1.2.49/include/helpers.php#L268https://plugins.trac.wordpress.org/changeset/3386104/oopspam-anti-spam/trunk/include/helpers.phphttps://www.wordfence.com/threat-intel/vulnerabilities/id/b5137bc2-912b-4e25-966e-515e8d9fc21c?source=cve