CVE-2026-128053
Published:November 13, 2026
Updated:November 13, 2026
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.
Affected Packages
https://github.com/OpenMage/magento-lts.git (GITHUB):
Affected version(s) >=1.4.0.0 <v20.18.2 || >=v19.4.0 <v20.18.2 || >=v20.0.0 <v20.18.2Fix Suggestion:
Update to version v20.18.2https://github.com/OpenMage/magento-lts.git (GITHUB):
Affected version(s) >=v21.0.0-beta1 <v21.0.0-beta3Fix Suggestion:
Update to version v21.0.0-beta3openmage/magento-lts (PHP):
Affected version(s) >=v21.0.0-beta1 <v21.0.0-beta3Fix Suggestion:
Update to version v21.0.0-beta3openmage/magento-lts (PHP):
Affected version(s) >=v19.4.0 <v20.18.2 || >=v20.0.0 <v20.18.2 || >=1.9.1.1 <v20.18.2Fix Suggestion:
Update to version v20.18.2Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation