CVE-2015-10133: markjaquith subscribe_to_comments PHP Remote File Inclusion

Vulnerability summary

CVE-2015-10133 is a high (CVSS 7.2) PHP Remote File Inclusion vulnerability in markjaquith subscribe_to_comments. EPSS estimates a 2.34% chance of exploitation in the next 30 days, higher than 83.3% of scored vulnerabilities. 4 public exploits are recorded.

Timeline

1. 19-07-2025
   PublishedVulnerability first disclosed.
2. 08-04-2026
   Last modifiedVulnerability information updated.

Description

The Subscribe to Comments for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 2.1.2 via the Path to header value. This allows authenticated attackers, with administrative privileges and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included. This same function can also be used to execute arbitrary PHP code.

• CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions.