CVE-2026-25525: Openmage Magento

Medium severity, CVSS 4.9. EPSS: 0.7% chance of exploitation in the next 30 days.

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to version 20.17.0, the Dataflow module in OpenMage LTS uses a weak blacklist filter (`str_replace('../', '', $input)`) to prevent path traversal attacks. This filter can be bypassed using patterns like `..././` or `....//`, which after the replacement still result in `../`. An authenticated administrator can exploit this to read arbitrary files from the server filesystem. Version 20.17.0 patches the issue.

Affected products

• Openmage Magento: before 20.17.0 (fixed in 20.17.0)

Published 2026-04-20. Last modified 2026-06-17.