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CVE-2025-58163

27
FAUCET Score

CVE-2025-58163 is a critical deserialization of untrusted data vulnerability affecting FreeScout versions 1.8.185 and earlier, a PHP-based help desk and shared inbox solution. Authenticated attackers with knowledge of the application's APP_KEY can achieve remote code execution by manipulating specific URL parameters. This vulnerability carries a high CVSS score of 8.8, indicating severe potential impact including complete compromise of confidentiality, integrity, and availability. While no active exploitation or public exploit code has been observed, and community discussion is minimal, the vulnerability's nature makes it a significant risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.8.186CPE matchmatch criteria
cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.6HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 40th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / freescout-help-desk/freescout/commit/e2de65f3f32f825b4ec5558643ed81438c9a6bc6
Patch
github.com / freescout-help-desk/freescout/releases/tag/1.8.186
Release Notes
github.com / freescout-help-desk/freescout/security/advisories/GHSA-j94w-q9gj-c37g
ExploitVendor Advisory