High severity · published May 29, 2025
CVE-2025-48389
FreeScout Vulnerable to Deserialization of Untrusted Data
7.2
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
freescout · freescout-help-desk
< 1.8.178 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-48389
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-48389
Patch
https://github.com/freescout-help-desk/freescout/commit/f7548a7076a0b6e109001069d6be223fbd96c61e
Exploit
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jmpv-8q3h-2m8v
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