CubeCart up to 6.7.4 GUI Message classes/gui.class.php _errorMessage cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in CubeCart up to 6.7.4. Affected by this vulnerability is the function _errorMessage of the file classes/gui.class.php of the component GUI Message Handler. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-54644. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in CubeCart up to 6.7.4. Affected is the function _errorMessage of the file classes/gui.class.php of the component GUI Message Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product 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. This is going to have an impact on integrity. CVE summarizes:

CubeCart is an ecommerce software solution. Prior to 6.7.5, the _errorMessage method in classes/gui.class.php uses strip_tags to permit anchor elements in error, information, and warning messages while retaining unsafe href values and onclick event handlers. Attacker-controlled search or input data that reaches a GUI message can carry a javascript: URI or event handler through the filter, and viewing or interacting with the rendered anchor executes JavaScript in the victim's browser session, enabling session exposure or unauthorized application actions. This issue is fixed in version 6.7.5.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-54644 since 06/15/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

By approaching the search of inurl:classes/gui.class.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 6.7.5 eliminates this vulnerability.

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Productinfo

Type

• E-Commerce Management Software

Name

• CubeCart

Version

• 6.7.0
• 6.7.1
• 6.7.2
• 6.7.3
• 6.7.4

License

• open-source

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