Jexactyl wrapper.blade.php json_encode cross site scripting

Summaryinfo

A vulnerability was found in Jexactyl exactyl and classified as problematic. The affected element is the function json_encode of the file resources/views/templates/wrapper.blade.php. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2026-33061. It is possible to launch the attack on the local host. There is not any exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Jexactyl exactyl (the affected version is unknown). It has been declared as problematic. This vulnerability affects the function json_encode of the file resources/views/templates/wrapper.blade.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

Jexactyl is a customisable game management panel and billing system. Commits after 025e8dbb0daaa04054276bda814d922cf4af58da and before e28edb204e80efab628d1241198ea4f079779cfd inject server-side objects into client-side JavaScript through resources/views/templates/wrapper.blade.php. Using unescaped {!! json_encode(...) !!} without safe encoding flags allows string values to break out of the JavaScript context and be interpreted as HTML/JS by the browser. If any serialized fields contain attacker-controlled content, such as a username, display name, or site config value, a malicious payload will execute arbitrary script for any user viewing the page (stored DOM XSS). This issue has been patched by commit e28edb204e80efab628d1241198ea4f079779cfd.

The advisory is available at github.com. This vulnerability was named CVE-2026-33061 since 03/17/2026. The exploitation appears to be easy. Local access is required to approach this attack. The exploitation needs additional levels of successful 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:resources/views/templates/wrapper.blade.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch e28edb204e80efab628d1241198ea4f079779cfd is able to eliminate this problem.

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Vendor

• Jexactyl

Name

• exactyl

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CPE 2.2info

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