CVE-2025-48388 FreeScout Has Insufficient Protection Against CRLF-injection
Attackers can inject control characters into FreeScout via insufficient input validation, potentially disrupting log integrity or application behavior.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-48388?
CVE-2025-48388 is a high-severity vulnerability in freescout-help-desk freescout, published on 29 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, the application performs insufficient validation of user-supplied data, which is used as arguments to string formatting functions. As a result, an attacker can pass a string containing special symbols (\r, \n, \t)to the application. This issue has been patched in version 1.8.178.
Which versions are affected by CVE-2025-48388?
It affects 1 product.
Products include Freescout Freescout.
How do I fix CVE-2025-48388?
No fix has been published for CVE-2025-48388 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-48388 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-48388 exists.
Other vulnerabilities in freescout-help-desk freescout
- CVE-2026-28289 FreeScout 1.8.206 Patch Bypass for CVE-2026-27636 via Zero-Width Space Character Leads to Remote Code Execution
- CVE-2026-27637 FreeScout's Predictable Authentication Token Enables Account Takeover
- CVE-2026-32754 FreeScout: Stored XSS via Unescaped Email Template Rendering ({!! $thread->body !!})
- CVE-2024-29185 FreeScout OS Command Injection vulnerability
- CVE-2026-40498 FreeScout has Authentication Bypass and Information Disclosure in SystemController via /system/cron
Sources
Also known as GHSA-c76f-wggm-grcq.