CVE-2025-48875: freescout XSS — Exploit & Fix

Description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.181, the system's incorrect validation of last_name and first_name during profile data updates allows for the injection of arbitrary JavaScript code, which will be executed in a flesh-message when the data is deleted, potentially leading to a Cross-Site Scripting (XSS) vulnerability. This issue has been patched in version 1.8.181.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
freescout	freescout	< 1.8.181

References

Advisories & Patches

https://github.com/freescout-help-desk/freescout/commit/508dda16853a39fcb6c2b46ea7b7f442d5f7eda7 https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mjjx-rv96-w9hq

Exploits

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mjjx-rv96-w9hq

Frequently Asked Questions

What is CVE-2025-48875? +

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.181, the system's incorrect validation of last_name and first_name during profile data updates allows for the injection of arbitrary JavaScript code, which will be executed in a flesh-message when the data is deleted, potentially leading to a Cross-Site Scripting (XSS) vulnerability. This issue has been patched in version 1.8.181. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-48875? +

CVE-2025-48875 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-48875? +

CVE-2025-48875 affects products from freescout, specifically: freescout. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-48875? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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