Spam protection, Anti-Spam, FireWall by CleanTalk <= 6.44 - Authorization Bypass due to Missing Empty Value Check to Unauthenticated Arbitrary Plugin Installation
43Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck.
ssvc Actcvss 8.1epss 3.8%
from disclosure to weapon
Published on NVDNov 26
VulnCheckNov 26
exploitation probability
3.8%top 11% of all CVEs
observed exploitation
yesVulnCheck
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an missing empty value check on the 'api_key' value in the 'perform' function in all versions up to, and including, 6.44. 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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
cleantalk · Spam protection, Honeypot, Anti-Spam by CleanTalkReferences
https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.44/lib/Cleantalk/ApbctWP/RemoteCalls.php#L95https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.44/lib/Cleantalk/ApbctWP/RemoteCalls.php#L96https://plugins.trac.wordpress.org/changeset/3188546/cleantalk-spam-protect#file653https://www.wordfence.com/threat-intel/vulnerabilities/id/79ae062c-b084-4045-9407-2d94919993af?source=cve