What’s Vulnerable › Vulnerabilities

CVE-2025-48388: FreeScout Has Insufficient Protection Against CRLF-injection

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-29 · updated 2026-06-17
• Weakness: CWE-93

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.

Affected products

• freescout-help-desk freescout: before 1.8.178 — fixed in 1.8.178

How to fix

Upgrade to a fixed version: freescout-help-desk freescout 1.8.178. Check the vendor advisory for mitigations.

References

• https://github.com/freescout-help-desk/freescout/commit/eab97711027fff4bce90ccd2e189cbc184fa0370
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-c76f-wggm-grcq

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