CVE-2026-42458: CWE-87: Improper Neutralization of Alternate XSS Syntax in OpenMage magento-lts
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.
AI Analysis
Technical Summary
CVE-2026-42458 is a reflected XSS vulnerability in OpenMage magento-lts versions before 20.18.0. It occurs in the admin panel's System -> Import/Export -> Dataflow - Profiles section due to improper neutralization of alternate XSS syntax (CWE-87). This allows an attacker to inject malicious scripts that could be executed in the context of an administrator's browser session. The vulnerability has a CVSS 4.0 score of 5.3, reflecting medium severity. The issue is resolved in version 20.18.0.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary scripts in the context of an administrator's session, potentially leading to session hijacking or unauthorized actions within the admin panel. However, exploitation requires user interaction (UI:P) and no privileges or authentication are needed (PR:N). The vulnerability is limited to versions prior to 20.18.0.
Mitigation Recommendations
Upgrade to OpenMage magento-lts version 20.18.0 or later, where this vulnerability is fixed. Since the vendor advisory indicates the issue is resolved in 20.18.0, applying this official fix is the recommended remediation. No additional mitigation guidance is provided or necessary.
CVE-2026-42458: CWE-87: Improper Neutralization of Alternate XSS Syntax in OpenMage magento-lts
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.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/openmage/magento-ltsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42458 is a reflected XSS vulnerability in OpenMage magento-lts versions before 20.18.0. It occurs in the admin panel's System -> Import/Export -> Dataflow - Profiles section due to improper neutralization of alternate XSS syntax (CWE-87). This allows an attacker to inject malicious scripts that could be executed in the context of an administrator's browser session. The vulnerability has a CVSS 4.0 score of 5.3, reflecting medium severity. The issue is resolved in version 20.18.0.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary scripts in the context of an administrator's session, potentially leading to session hijacking or unauthorized actions within the admin panel. However, exploitation requires user interaction (UI:P) and no privileges or authentication are needed (PR:N). The vulnerability is limited to versions prior to 20.18.0.
Mitigation Recommendations
Upgrade to OpenMage magento-lts version 20.18.0 or later, where this vulnerability is fixed. Since the vendor advisory indicates the issue is resolved in 20.18.0, applying this official fix is the recommended remediation. No additional mitigation guidance is provided or necessary.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-27T13:55:58.694Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a075665ec166c07b072346f
Added to database: 05/15/2026, 17:22:45 UTC
Last enriched: 05/15/2026, 17:37:36 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 96
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