Vulnerability in Cleantalk Spam Protection, Honeypot, Anti-spam By
CVE-2026-1490
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS (PTR record) spoofing on the 'checkWithoutToken' function…
EPSS: 0.000 (15.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cleantalk Spam Protection, Honeypot, Anti-spam By — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/cb603be6-4a12-49e1-b8cc-b2062…
- plugins.trac.wordpress.org/browser/cleantalk-spam-protect/trunk/lib/Cleantalk/A…
- plugins.trac.wordpress.org/browser/cleantalk-spam-protect/trunk/lib/Cleantalk/C…
- plugins.trac.wordpress.org/changeset/3454488/cleantalk-spam-protect
Frequently asked questions
- What is CVE-2026-1490?
- CVE-2026-1490 is a critical-severity vulnerability in Cleantalk Spam Protection, Honeypot, Anti-spam By, classified under CWE-350. CVSS score: 9.8/10. Published 2026-02-15.
- How severe is CVE-2026-1490?
- Critical severity. CVSS v3 base score is 9.8 out of 10.