Unauthenticated SQL Injection in CleanTalk Security & Malware Scan Plugin
CVE-2026-66593

9.3CRITICAL

Key Information:

Vendor

WordPress
Status
Security & Malware Scan By Cleantalk
Vendor
CVE Published:
20 August 2026

What is CVE-2026-66593?

An unauthenticated SQL Injection vulnerability has been identified in the Security & Malware scan plugin developed by CleanTalk for WordPress. This issue affects versions up to 2.184, allowing attackers to execute arbitrary SQL commands without authentication. Proper input validation is essential to mitigate potential data breaches and unauthorized access. Users are strongly advised to upgrade to the latest version to protect their websites.

Affected Version(s)

Security & Malware scan by CleanTalk <= 2.184

References

https://patchstack.com/database/wordpress/plugin/security...
vdb-entry

CVSS V3.1

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Noman Riffat | Patchstack Bug Bounty Program
.