CVE-2026-42458: Magento LTS: Reflected XSS - Import -> Data Flow (profiles)

Severity: medium (CVSS 5.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-15 · updated 2026-10-26
Weakness: CWE-87

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, there is a reflected XSS vulnerability under admin panel -> System -> Import/Export -> Dataflow - Profiles. This vulnerability is fixed in 20.18.0.

Affected products

OpenMage magento-lts: before 20.18.0

References

https://github.com/OpenMage/magento-lts/security/advisories/GHSA-x8jv-q8j2-487c
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-x8jv-q8j2-487c

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