Vulnerability advisory

CVE-2025-27400

Magento vulnerable to stored XSS in theme config fields

Published Feb 28, 2025Updated Oct 28, 2026OSV record ↗

Severity

CVSS 3.xCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L

Affected versions

Repository

Affected commits	Fixed by commit
GIT github.com/openmage/magento-lts ↗
All commits before 4c2ef21b973d27ac1d89160610fec63f6436ab46	`4c2ef21b973d27ac1d89160610fec63f6436ab46`
Not specified	`d307e5bf75729a2347dde0952fe9fd9fcd9c6aea`
Not specified	`cd7bf930736a34add81b1fe84ba8caaca7e42b38`
Also listed as affected (101) `v20.12.2` `v20.12.1` `v20.12.0` `v20.11.0` `v20.10.1` `v21.0.0-beta2` `v20.10.0` `v20.9.0` `v20.8.0` `v20.7.0` `v20.6.0` `v20.5.0` `v20.4.0` `v20.3.0` `v20.2.0` `v20.1.1` `v20.1.0` `v20.1.0-rc7` `v20.1.0-rc6` `v20.1.0-rc5` `v20.1.0-rc4` `v20.1.0-rc3` `v20.1.0-rc2` `v20.1.0-rc1` `v20.0.18` `v20.0.17` `v20.0.16` `v20.0.15` `v20.0.13` `v20.0.12` `v20.0.11` `v20.0.10` `v20.0.8` `v20.0.7` `v20.0.6` `v20.0.5` `v20.0.4` `v20.0.3` `v20.0.2` `v20.0.1` `v20.0.0` `v19.4.4` `v19.4.3` `v19.4.2` `v19.4.1` `v19.4.0` `1.9.0.1` `1.9.1.1` `1.9.1.0-lts` `1.9.0.0` `1.8.1.0` `1.7.0.2` `1.7.0.1` `1.7.0.0` `1.6.1.0` `1.6.0.0` `1.6.0.0-rc2` `1.6.0.0-rc1` `1.6.0.0-beta1` `1.6.0.0-alpha1` `1.5.1.0` `1.5.0.1` `1.5.0.0` `1.5.0.0-rc2` `1.5.0.0-rc1` `1.5.0.0-beta2` `1.5.0.0-beta1` `1.5.0.0-alpha2` `1.5.0.0-alpha1` `1.4.2.0` `1.4.1.1` `1.4.1.0` `1.4.0.1` `1.3.2.4` `1.4.0.0` `1.4.0.0-rc1` `1.4.0.0-beta1` `1.4.0.0-alpha3` `1.4.0.0-alpha2` `1.4.0.0-alpha1` `1.3.2.3` `1.3.2.2` `1.3.2.1` `1.3.2` `1.3.1.1` `1.3.1` `1.3.0` `1.2.1.2` `1.2.1` `1.2.0.3` `1.2.0.2` `1.2.0.1` `1.2.0` `1.1.8` `1.1.7` `1.1.6` `1.1.5` `1.1.4` `1.1.3` `1.1.2` `1.1.1`

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. Versions prior to 20.12.3 and 20.13.0 contain a vulnerability that allows script execution in the admin panel which could lead to cross-site scripting against authenticated admin users. The attack requires an admin user with configuration access, so in practicality it is not very likely to be useful given that a user with this level of access is probably already a full admin. Versions 20.12.3 and 20.13.0 contain a patch for the issue.

CVE-2025-27400

Affected versions

Repository

Description

References