How to fix CVE-2025-48486?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is Freescout affected by CVE-2025-48486?

Organizations using FreeScout should be aware of moderate risk from CVE-2025-48486, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available.

CVE-2025-48486

MEDIUM

2025-05-30 [email protected]

6.1

CVSS 4.0

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

Privileges Required

Low

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:44 vuln.today

PoC Detected

Jun 04, 2025 - 19:57 vuln.today

Public exploit code

CVE Published

May 30, 2025 - 07:15 nvd

MEDIUM 6.1

Description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, the cross-site scripiting (XSS) vulnerability is caused by the lack of input validation and sanitization in both \Session::flash and __, allowing user input to be executed without proper filtering. This issue has been patched in version 1.8.180.

Analysis

FreeScout is a free self-hosted help desk and shared mailbox. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, the cross-site scripiting (XSS) vulnerability is caused by the lack of input validation and sanitization in both \Session::flash and __, allowing user input to be executed without proper filtering. This issue has been patched in version 1.8.180. Affected products include: Freescout. Version information: version 1.8.180.

Affected Products

Freescout.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.2

CVSS: +30

POC: +20

CVE-2025-48486 vulnerability details – vuln.today

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CVE-2025-48486

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CVE-2025-48486

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

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External POC / Exploit Code