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TI-2025-30762 Aliases CVE-2025-48483

FreeScout Stored XSS leads to CSRF

Priority LOW 27CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Tampering, Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-352 and CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00158 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed freescout (freescout-help-desk): 1.8.180

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
freescout-help-deskfreescoutbefore 1.8.1801.8.180Patch availableCNA
  • freescout Vendorfreescout-help-desk Affected before 1.8.180 Fixed in 1.8.180 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:*before 1.8.180Vulnerablefreescout-help-desk
  • cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:* Versions before 1.8.180 Vulnerable ·freescout-help-desk

Remediation

  • Fix · CNA freescout (freescout-help-desk) Fixed in 1.8.180

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-48483

References

Exploit 1

  • TI-2026-22019 FreeScout's Predictable Authentication Token Enables Account Takeover CVSS 3.1CRITICAL 9.8
  • TI-2026-29249 FreeScout has Authentication Bypass and Information Disclosure in SystemController via /system/cron CVSS 4.0HIGH 8.9
  • TI-2026-29247 FreeScout has Predictable Attachment Token that Allows Unauthenticated Private File Download via Brute Force CVSS 4.0HIGH 8.8
  • TI-2026-25245 FreeScout: Stored XSS via Unescaped Email Template Rendering ({!! $thread->body !!}) CVSS 3.1CRITICAL 9.3
  • TI-2026-22596 FreeScout 1.8.206 Patch Bypass for CVE-2026-27636 via Zero-Width Space Character Leads to Remote Code Execution CVSS 3.1CRITICAL 10.0
  • TI-2024-19354 FreeScout OS Command Injection vulnerability CVSS 3.1CRITICAL 9.1
See all 45 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences