freescout-help-desk freescout up to 1.8.208 Image Parser cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in freescout-help-desk freescout up to 1.8.208. Affected by this issue is some unknown functionality of the component Image Parser. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2026-32753. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in freescout-help-desk freescout up to 1.8.208. Affected is an unknown function of the component Image Parser. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on integrity. CVE summarizes:

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. In versions 1.8.208 and below, bypasses of the attachment view logic and SVG sanitizer make it possible to upload and render an SVG that runs malicious JavaScript. An extension of .png with content type of image/svg+xml is allowed, and a fallback mechanism on invalid XML leads to unsafe sanitization. The application restricts which uploaded files are rendered inline: only files considered "safe" are displayed in the browser; others are served with Content-Disposition: attachment. This decision is based on two checks: the file extension (e.g. .png is allowed, while .svg may not be) and the declared Content-Type (e.g. image/* is allowed). By using a filename with an allowed extension (e.g. xss.png) and a Content-Type of image/svg+xml, an attacker can satisfy both checks and cause the server to treat the upload as a safe image and render it inline, even though the body is SVG and can contain scripted behavior. Any authenticated user can set up a specific URL, and whenever another user or administrator visits it, XSS can perform any action on their behalf. This issue has been fixed in version 1.8.209.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-32753 since 03/13/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 1.8.209 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch cb8618845704aef8f5e4a494c7f605e7bd9fdaeb is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• freescout-help-desk

Name

• freescout

Version

• 1.8.208

License

• open-source

Website

• Product: https://github.com/freescout-help-desk/freescout/

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