CVE-2021-24209: automattic wp_super_cache Code Injection

Vulnerability summary

CVE-2021-24209 is a high (CVSS 9.0) Code Injection vulnerability in automattic wp_super_cache. EPSS estimates a 27.67% chance of exploitation in the next 30 days, higher than 98% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 05-04-2021
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

The WP Super Cache WordPress plugin before 1.7.2 was affected by an authenticated (admin+) RCE in the settings page due to input validation failure and weak $cache_path check in the WP Super Cache Settings -> Cache Location option. Direct access to the wp-cache-config.php file is not prohibited, so this vulnerability can be exploited for a web shell injection.

• CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.