Vulnerability · Published May 29, 2025 · Assigned by GitHub_M

CVE-2025-48389FreeScout Vulnerable to Deserialization of Untrusted Data

High 8.6

In plain English

A high-severity unsafe deserialization in freescout from freescout-help-desk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High

Exploit odds (30 days)1.0%top 37.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, FreeScout is vulnerable to deserialization of untrusted data due to insufficient validation. Through the set function, a string with a serialized object can be passed, and when getting an option through the get method, deserialization will occur, which will allow arbitrary code execution This issue has been patched in version 1.8.178.

Affected products (as reported)

Vendor	Product	Versions
freescout-help-desk	freescout	< 1.8.178

Weakness: CWE-502 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

References

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jmpv-8q3h-2m8v x_refsource_CONFIRM
https://github.com/freescout-help-desk/freescout/commit/f7548a7076a0b6e109001069d6be223fbd96c61e x_refsource_MISC