CVE-2026-41904 Details
Description
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, a user with updateAutoReply permission can store an XSS payload in the mailbox auto-reply message. The payload is rendered unescaped in the auto-reply email sent to every customer who contacts the mailbox. Email clients do not enforce CSP, so the payload executes in the customer's webmail / mail-client context. This issue has been patched in version 1.8.217.
A cross-site scripting (XSS) vulnerability has been identified in FreeScout versions prior to 1.8.217. The issue allows users with the 'updateAutoReply' permission to inject an XSS payload into the mailbox auto-reply message. This payload is then sent unescaped to every customer who contacts the mailbox, executing in the context of the customer's email client, which typically does not enforce content security policies. The vulnerability arises from a validation bypass in the auto-reply message handling, where mixed text and HTML content can be exploited to deliver malicious scripts.
Users can update to FreeScout version 1.8.217 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 7, 2026CISA-ADP
Assessed May 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-q3fh-rj9h-jfrc | CISA-ADP | AdvisoryExploitRemedyTechnical AnalysisVendor |
| https://github.com/freescout-help-desk/freescout/releases/tag/1.8.217 | [email protected] | Release NotesVendor |
| https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-q3fh-rj9h-jfrc | [email protected] | AdvisoryExploitRemedyTechnical AnalysisVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| FreeScout | <= 1.8.216 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 7, 2026 | CVE Modified | CISA-ADP |
| May 7, 2026 | New CVE Received | [email protected] |