Threats tagged 'ghsa-2phh-27fw-q4gc'

PhpSpreadsheet versions from 5.5.0 up to and including 5.9.0 contain a server-side request forgery (SSRF) vulnerability in the Worksheet\Drawing::setPath() method. The vulnerability arises because the external image URL whitelist check is applied only once on the initial URL, and HTTP redirects are followed without re-validation, allowing an attacker to redirect requests to internal or otherwise restricted endpoints. This results in a blind SSRF where the server issues internal GET requests without exfiltrating response content. A fix is available in version 5.10.0.