CVE-2023-33996 HIGH

CVE-2023-33996: WordPress Spam protection, AntiSpam, FireWall by CleanTalk plugin <= 6.10 - Broken Access Control vulnerability

Vendor Сleantalk - Anti-Spam Protection
Product Spam protection, AntiSpam, FireWall by CleanTalk
Weakness CWE-862 · Missing authorization
Published December 13, 2024
Last update April 28, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Missing Authorization vulnerability in СleanTalk - Anti-Spam Protection Spam protection, AntiSpam, FireWall by CleanTalk allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Spam protection, AntiSpam, FireWall by CleanTalk: from n/a through 6.10.

Explanation of Vulnerability in Simple Terms

02Summary

The CleanTalk anti-spam plugin for WordPress and other CMS platforms contains an authorization flaw that allows authenticated users with low privileges to perform actions they should not be able to access. An attacker with a basic user account can read sensitive data, modify site content, or disrupt service. The vulnerability affects versions up to 6.10.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify content, or disrupt service with a low-privilege user account.

Potential impact on your site

04Site Impact

Any registered user can escalate their access to perform admin-level actions without additional authentication.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege user account on the site; no user interaction required.

Key dates

06Disclosure timeline

December 13, 2024 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE