CVE-2024-10542CWE-862

Spam protection, Anti-Spam, FireWall by CleanTalk <= 6.43.2 - Authorization Bypass via Reverse DNS Spoofing to Unauthenticated Arbitrary Plugin Installation

Critical · published November 26, 2024

CVSS v3.1
9.8
EPSS
15%
Percentile
96.8
In the wild
Unconfirmed
What it is

🚨 A shocking authorization bypass lets attackers install any plugin they want on your WordPress site through a clever DNS trick! 🔥 Think of your WordPress site as a high-security hotel. This vulnerability is like a guest using a fake reservation to access the staff-only areas, allowing them to set up anything they desire without permission, potentially wreaking havoc! If exploited, an attacker could install malicious plugins that may lead to remote code execution, giving them total control over your site. This could result in data theft, service disruptions, or even complete takeover of your WordPress environment — an absolutely devastating scenario for any site owner!

Put simply

Think of your WordPress site as a high-security hotel. This vulnerability is like a guest using a fake reservation to access the staff-only areas, allowing them to set up anything they desire without permission, potentially wreaking havoc! The flaw exists in the CleanTalk plugin's checkWithoutToken function, where reverse DNS spoofing allows unauthorized users to bypass security checks and install arbitrary plugins across all versions up to and including 6.43.2.

What to do

If exploited, an attacker could install malicious plugins that may lead to remote code execution, giving them total control over your site. This could result in data theft, service disruptions, or even complete takeover of your WordPress environment — an absolutely devastating scenario for any site owner! Immediately update the CleanTalk plugin to the patched version, secure your site with proper authentication measures, and consider reviewing all installed plugins for any known vulnerabilities. It’s crucial to audit user permissions and ensure that only trusted sources can add plugins. You can tackle this vulnerability! Follow these steps to secure your site, and you’ll earn your security hero badge in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.15364 · 96.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2024-11-26T05:33Z
EPSS history
Timeline
  • 26 NOV 05:33Z
    Spam protection, Anti-Spam, FireWall by CleanTalk <= 6.43.2 - Authorization Bypass via Reverse DNS Spoofing to Unauthenticated Arbitrary Plugin Installation
    cvelistv5