CVE-2023-6634: thimpress learnpress Command Injection

Vulnerability summary

CVE-2023-6634 is a critical (CVSS 9.8) Command Injection vulnerability in thimpress learnpress. EPSS estimates a 8.54% chance of exploitation in the next 30 days, higher than 95% of scored vulnerabilities. Fixed in 4.2.5.8.

Timeline

1. 11-01-2024
   PublishedVulnerability first disclosed.
2. 08-04-2026
   Last modifiedVulnerability information updated.

Description

The LearnPress plugin for WordPress is vulnerable to Command Injection in all versions up to, and including, 4.2.5.7 via the get_content function. This is due to the plugin making use of the call_user_func function with user input. This makes it possible for unauthenticated attackers to execute any public function with one parameter, which could result in remote code execution.

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
• CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.