CVE-2026-42207

MEDIUM EPSS 4.5%

Published May 15, 20261mo ago · Modified Jun 17, 20262w ago

6.1 CVSS 3.1

Medium

Published May 15, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

Description

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 20.18.0, Mage_ProductAlert_AddController::stockAction() reads the uenc query parameter and passes it directly to $this->_redirectUrl($backUrl) without calling $this->_isUrlInternal(). When the supplied product_id does not match any catalog product, the server issues an unvalidated HTTP 302 redirect to whatever URL was provided as uenc. This vulnerability is fixed in 20.18.0.

CVSS Details

Base Score

6.1

Exploitability

2.8

Impact

2.7

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Changed

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

4.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-601

References 1

github.com https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.