PT-2026-38267 · Openmage+1 · Magento-Lts+1

Published 2026-05-06 · Updated 2026-05-18 · CVE-2026-42458

Positive Technologies (AI Summary)

CVSS v4.0

5.3

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Magento Long Term Support (LTS) versions prior to 20.18.0

Description A reflected cross-site scripting (XSS) issue exists within the admin panel under System -> Import/Export -> Dataflow - Profiles. The flaw occurs when a filename is reflected in HTML tags without proper sanitization. An attacker can exploit this by manipulating the filename in the request to the endpoint "/index.php/admin/system convert gui/run/" via the files variable, allowing the execution of arbitrary JavaScript in the context of the user's session.

Recommendations Update to version 20.18.0.

Exploit

Fix

Weakness Enumeration

CWE-87

Related Identifiers

CVE-2026-42458

GHSA-X8JV-Q8J2-487C

Affected Products

Magento-Lts

Openmage Magento Lts

References · 5

• 🔥 https://github.com/OpenMage/magento-lts/security/advisories/GHSA-x8jv-q8j2-487c · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-42458 · Security Note
• https://osv.dev/vulnerability/GHSA-x8jv-q8j2-487c · Vendor Advisory
• https://github.com/OpenMage/magento-lts · Note
• https://t.me/cveNotify/163899 · Telegram Post