CVE-2025-48483: FreeScout Stored XSS leads to CSRF
Description
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, the application is vulnerable to Cross-Site Scripting (XSS) attacks due to incorrect input validation and sanitization of user-input data during mail signature sanitization. An attacker can inject arbitrary HTML code, including JavaScript scripts, into the page processed by the user's browser, allowing them to steal sensitive data, hijack user sessions, or conduct other malicious activities. Additionally, if an administrator accesses one of these emails with a modified signature, it could result in a subsequent Cross-Site Request Forgery (CSRF) vulnerability. This issue has been patched in version 1.8.180.
Classification
CVE ID: CVE-2025-48483
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Problem Types
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-352: Cross-Site Request Forgery (CSRF)Affected Products
Vendor: freescout-help-desk
Product: freescout
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.02% (probability of being exploited)
EPSS Percentile: 2.1% (scored less or equal to compared to others)
EPSS Date: 2025-06-17 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-48483https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-g2vq-qwx2-pc2m