High7
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

PT-2025-103: Deserialization of untrusted data in FreeScout

Error type:

  • CWE-502:Deserialization of Untrusted Data

Vulnerability vector:

  • Base vulnerability score (CVSSv4.0): CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
  • Severity (CVSSv4.0): 7.0 (High)

Description:

The vulnerability was identified in FreeScout, version 1.8.182.

The discovered vulnerability allows an attacker to deserialize data, instantiate arbitrary objects and alter their properties, causing severe disruption of the system.

Vulnerability status: Confirmed by vendor

Date of vulnerability remediation: 19.07.2025

Recommendations:

  • Update to version 1.8.186 or higher

Additional information: Security advisory, Press release

Researcher: Daniil Satyaev, Roman Cheremnykh, Artem Danilov (Positive Technologies)

Identifiers:

BDU:2025-13052

Vendor:

FreeScout

Vulnerable product:

FreeScout

Vulnerable versions:

1.8.182