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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.

PUBLISHED Reserved 2025-10-22 | Published 2025-10-31 | Updated 2025-10-31 | Assigner Wordfence




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-693 Protection Mechanism Failure

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-10-22:Vendor Notified
2025-10-30:Disclosed

Credits

Jonas Benjamin Friedli finder

References

www.wordfence.com/...-912b-4e25-966e-515e8d9fc21c?source=cve

plugins.trac.wordpress.org/...ags/1.2.49/include/helpers.php

plugins.trac.wordpress.org/...spam/trunk/include/helpers.php

cve.org (CVE-2025-12094)

nvd.nist.gov (CVE-2025-12094)

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