HTML Purifier allows remote attackers to obtain sensitive information

ezyang/htmlpurifier Updated 02 Oct 2025

Summary

17/05/2022

Disclosed on

CVE-2011-3744

CVE

No i

Fix available

Moderate

Severity

5.3

CVSS Score

CVE-2011-3744: HTML Purifier allows remote attackers to obtain sensitive information. Affects ezyang/htmlpurifier versions < 4.2.0. No fix is published. How to fix ↓

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HTML Purifier 4.2.0 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by tests/PHPT/Reporter/SimpleTest.php and certain other files.