GHSA-jg68-vhv3-9r8fMediumCVSS 5.3

Magento's X-Original-Url header can expose admin url

Published
February 2, 2026
Last Modified
February 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-25523 →

📋 Description

Impact

The admin url can be discovered without prior knowledge of it's location by exploiting the X-Original-Url header on some configurations.

Patches

The bug comes from the Zend library and is patche by unsetting the header in the bootstrap process.

Workarounds

Unset the X-Original-Url header in the web server configuration.

References

The activation of these headers is coming from the Zend_Controller module. It appears this has been known to some degree since 2016 - https://peterocallaghan.co.uk/2016/12/magento-poisoning-cache/ (dead link now..)

Credit

Anees Hyder ( @anees0xdev ) via HackerOne https://hackerone.com/anees0x_dev/hacktivity

🎯 Affected products1

  • composer/openmage/magento-lts:< 20.16.1

🔗 References (4)