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CVE-2026-25524 affects OpenMage LTS (Magento Long Term Support) prior to version 20.17.0. The issue arises from use of PHP filesystem and image-related functions including getimagesize(), file_exists(), and is_readable() on potentially attacker-controllable paths during image validation and media handling. In PHP, these functions can trigger deserialization when given a phar:// stream wrapper path. If an attacker can upload a crafted PHAR archive disguised as an image and cause the application to invoke one of the affected functions against a phar:// path referencing that file, PHP metadata deserialization may occur, leading to arbitrary code execution in the context of the web application. The issue is patched in OpenMage LTS 20.17.0.
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phar:// paths and other unexpected stream wrappers, and tightly restricting file upload functionality. Enforce strict server-side validation of uploaded media, store uploads outside directly processed paths where feasible, and monitor for suspicious use of phar:// references in application logs or requests. These measures are compensating controls and do not replace upgrading to the fixed version.Patch, then assume compromise.
getimagesize(), file_exists(), and is_readable(), especially where phar:// stream wrapper resolution may occur during image validation or media processing. Ensure uploaded content is validated and handled in a way that prevents PHAR deserialization via stream wrappers.No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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