Threat intelligence

Spam protection, Honeypot, Anti-Spam by CleanTalk <= 6.71 - Authorization Bypass via Reverse DNS (PTR record) Spoofing to Unauthenticated Arbitrary Plugin Installation

CVE-2026-1490 · cleantalk-spam-protect

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Cleantalk Spam Protect at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Spam protection, Honeypot, Anti-Spam by CleanTalk <= 6.71 - Authorization Bypass via Reverse DNS (PTR record) Spoofing to Unauthenticated Arbitrary Plugin Installation
Affected software: cleantalk-spam-protect(Plugin)
Affected versions: ≤ 6.71
Authentication: Unauthenticated
Vulnerability type: Privilege escalation
CVE: CVE-2026-1490
Published: 14 February 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow a lower-privilege user to perform actions reserved for administrators.
Source: Data imported from Wordfence Intelligence (advisory cb603be6-4a12-49e1-b8cc-b2062eb97f16). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Cleantalk Spam Protect version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Cleantalk Spam Protect advisoriesBack to catalog