CVE-2026-25524

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, PHP functions such as `getimagesize()`, `file_exists()`, and `is_readable()` can trigger deserialization when processing `phar://` stream wrapper paths. OpenMage LTS uses these functions with potentially controllable file paths during image validation and media handling. An attacker who can upload a malicious phar file (disguised as an image) and trigger one of these functions with a `phar://` path can achieve arbitrary code execution. Version 20.17.0 patches the issue.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/OpenMage/magento-lts/releases/tag/v20.17.0	Release Notes
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-fg79-cr9c-7369	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*

History

No history.

Information

Published : 2026-04-20 17:16

Updated : 2026-06-17 10:24

NVD link : CVE-2026-25524

Mitre link : CVE-2026-25524

CVE.ORG link : CVE-2026-25524

JSON object : View

Products Affected

openmage

magento

CWE

CWE-502

Deserialization of Untrusted Data

{"id": "CVE-2026-25524", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25524", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-20T16:44:41.509455Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "OpenMage", "product": "magento-lts", "versions": [{"status": "affected", "version": "< 20.17.0"}]}]}], "published": "2026-04-20T17:16:32.290", "references": [{"url": "https://github.com/OpenMage/magento-lts/releases/tag/v20.17.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-fg79-cr9c-7369", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "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, PHP functions such as `getimagesize()`, `file_exists()`, and `is_readable()` can trigger deserialization when processing `phar://` stream wrapper paths. OpenMage LTS uses these functions with potentially controllable file paths during image validation and media handling. An attacker who can upload a malicious phar file (disguised as an image) and trigger one of these functions with a `phar://` path can achieve arbitrary code execution. Version 20.17.0 patches the issue."}], "lastModified": "2026-06-17T10:24:47.453", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "D3D78A44-3FCF-4E81-9A3C-A66A99CC489D", "versionEndExcluding": "20.17.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}