CVE-2026-128053

EUVD-2026-125056

13.11.2026, 10:18

OpenMage magento-lts before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a reflected cross-site scripting vulnerability in its error pages, which print SCRIPT_NAME-derived URLs built by errors/processor.php without escaping. Unauthenticated attackers can craft links that trigger uncaught exceptions on servers deriving SCRIPT_NAME from the request path, executing script in the storefront origin within victims' browsers.

Cross-site Scripting

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	4.7 MEDIUM	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 23.36%

Common Weakness Enumeration

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References

https://github.com/OpenMage/magento-lts/commit/0bcec215c25941f900d46657d63fd0862960edf6

https://github.com/OpenMage/magento-lts/security/advisories/GHSA-6pvw-8mv9-r8vr

https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-reflected-xss-via-error-pages-script-name