OpenMage magento-lts up to 20.16.x Dataflow path traversal

Summaryinfo

A vulnerability was found in OpenMage magento-lts up to 20.16.x. It has been classified as critical. Affected is an unknown function of the component Dataflow Module. Performing a manipulation results in path traversal. This vulnerability is known as CVE-2026-25525. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in OpenMage magento-lts up to 20.16.x. This affects an unknown code block of the component Dataflow Module. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-25525 since 02/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 20.17.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202604-3827). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• E-Commerce Management Software

Vendor

• OpenMage

Name

• magento-lts

Version

• 20.0
• 20.1
• 20.2
• 20.3
• 20.4
• 20.5
• 20.6
• 20.7
• 20.8
• 20.9
• 20.10
• 20.11
• 20.12
• 20.13
• 20.14
• 20.15
• 20.16

Website

• Product: https://github.com/OpenMage/magento-lts/

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Be aware that VulDB is the high quality source for vulnerability data.

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