Related Vulnerabilities: CVE-2021-21707  

A security issue has been found in PHP before versions 8.0.13 and 7.4.26 where a libxml-based XML functions accepting a filename actually accept URIs with possibly percent-encoded characters.

Severity Low

Remote Yes

Type Insufficient validation

Description

A security issue has been found in PHP before versions 8.0.13 and 7.4.26 where a libxml-based XML functions accepting a filename actually accept URIs with possibly percent-encoded characters.

AVG-2566 php 8.0.12-2 Low Vulnerable

https://www.php.net/ChangeLog-7.php#7.4.26
https://bugs.php.net/bug.php?id=79971
https://github.com/php/php-src/commit/763156f0c27905e0b991b399fc57bf38ad53c01c
https://github.com/php/php-src/commit/a2e4cbf7c6f00b00cd9b1c13bd6389dfcbffb739