Wren Security wrensec-commons up to 22.6.1/22.x HTTP Binding HttpUtils.prepareResponse _mimeType cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Wren Security wrensec-commons up to 22.6.1/22.x. This vulnerability affects the function HttpUtils.prepareResponse of the component HTTP Binding. The manipulation of the argument _mimeType results in cross site scripting. This vulnerability is cataloged as CVE-2026-2102. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in Wren Security wrensec-commons up to 22.6.1/22.x. Affected is the function HttpUtils.prepareResponse of the component HTTP Binding. The manipulation of the argument _mimeType 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:

wrensec-commons contains a reflected cross-site scripting (XSS) vulnerability in the CREST framework's HTTP binding. The HttpUtils.prepareResponse() method used the _mimeType request parameter to set the Content-Type response header without proper sanitization. By sending a GET request with _mimeType=text/html, an attacker could cause the browser to interpret a CREST JSON response as HTML, enabling execution of arbitrary JavaScript in the victim's browser. The vulnerability is exploitable by tricking a user into visiting a crafted URL targeting any deployed CREST endpoint. The issue is fixed in versions 22.6.2 and 23.0.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-2102 since 02/06/2026. 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.

Upgrading to version 22.6.2 or 23.0.0 eliminates this vulnerability.

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Productinfo

Vendor

• Wren Security

Name

• wrensec-commons

Version

• 22.6.0
• 22.6.1
• 22.x

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CPE 2.2info

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