CVE-2026-1490 (GCVE-0-2026-1490)

Vulnerability from cvelistv5 – Published: 2026-02-15 02:22 – Updated: 2026-04-08 17:23
VLAI
Title
Spam protection, Honeypot, Anti-Spam by CleanTalk <= 6.71 - Authorization Bypass via Reverse DNS (PTR record) Spoofing to Unauthenticated Arbitrary Plugin Installation
Summary
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 in all versions up to, and including, 6.71. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated. Note: This is only exploitable on sites with an invalid API key.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-17 21:21 UTC
CWE
  • CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2431 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
cleantalk Spam protection, Honeypot, Anti-Spam by CleanTalk Affected: 0 , ≤ 6.71 (semver)
guessed Create a notification for this product.
Credits
Nguyen Ngoc Duc
Show details on NVD website
To clipboard 

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