What is CVE-2025-48388?

CVE-2025-48388 is a medium-severity vulnerability in Freescout, classified under CRLF Injection. CVSS score: 6.5/10. Published 2025-05-29.

How severe is CVE-2025-48388?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-48388 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Freescout

CVE-2025-48388

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.

Vulnerability class: CRLF Injection

EPSS: 0.003 (26.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Freescout
Freescout-help-desk Freescout — versions < 1.8.178

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-48388?: CVE-2025-48388 is a medium-severity vulnerability in Freescout, classified under CRLF Injection. CVSS score: 6.5/10. Published 2025-05-29.
How severe is CVE-2025-48388?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-48388 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.