CVE-2025-65622: Snipeitapp Snipe-it XSS Vulnerability

CVE-2025-65622 Overview

CVE-2025-65622 is a stored Cross-Site Scripting (XSS) vulnerability affecting Snipe-IT asset management software versions prior to 8.3.4. The vulnerability exists in the Locations module's "Country" field, which fails to properly sanitize user-supplied input before rendering it in the browser. This allows a low-privileged authenticated user to inject malicious JavaScript that executes in the context of another user's session when they view the affected location entry.

Critical Impact

A low-privileged attacker can inject persistent JavaScript payloads that execute in other users' browsers, potentially leading to session hijacking, credential theft, unauthorized actions, or further compromise of the Snipe-IT instance.

Affected Products

• Snipe-IT versions before 8.3.4
• snipeitapp:snipe-it (cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:*)

Discovery Timeline

• 2025-12-01 - CVE-2025-65622 published to NVD
• 2025-12-03 - Last updated in NVD database

Technical Details for CVE-2025-65622

Vulnerability Analysis

This vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), commonly known as Cross-Site Scripting. The CVSS 3.1 base score is 5.4 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

The vulnerability characteristics indicate:

• Attack Vector (AV:N): Network-based exploitation
• Attack Complexity (AC:L): Low complexity to exploit
• Privileges Required (PR:L): Low-level authenticated access needed
• User Interaction (UI:R): Requires a victim to view the malicious content
• Scope (S:C): Changed - the vulnerability impacts resources beyond its security scope
• Confidentiality Impact (C:L): Low impact on confidentiality
• Integrity Impact (I:L): Low impact on integrity
• Availability Impact (A:N): No impact on availability

The EPSS (Exploit Prediction Scoring System) score is 0.029% with a percentile of 7.715, indicating relatively low exploitation probability as of 2025-12-16.

Root Cause

The root cause of CVE-2025-65622 lies in insufficient input validation and output encoding within Snipe-IT's Locations module. When a user creates or edits a location entry, the "Country" field does not properly sanitize special characters or HTML entities before storing the data. Subsequently, when this data is rendered in the application's user interface, the malicious script is executed in the victim's browser context rather than being displayed as plain text.

This type of stored XSS vulnerability is particularly dangerous because the malicious payload persists in the application's database and executes every time the affected record is viewed by any user with access to the Locations module.

Attack Vector

The attack vector for this vulnerability involves an authenticated user with minimal privileges (typically any user who can create or modify location records) inserting malicious JavaScript code into the "Country" field of a location entry. The attack proceeds as follows:

1. The attacker authenticates to the Snipe-IT application with low-privileged credentials
2. The attacker navigates to the Locations module and creates a new location or edits an existing one
3. In the "Country" field, the attacker enters a malicious JavaScript payload instead of a legitimate country name
4. When another user (potentially an administrator) views the location list or the specific location details, the injected script executes in their browser session
5. The malicious script can then perform actions such as stealing session cookies, making unauthorized API calls, or redirecting the victim to a phishing page

The vulnerability is exploitable over the network without requiring complex attack chains. Technical details and proof-of-concept information are available in the security research repository referenced in the external references.

Detection Methods for CVE-2025-65622

Indicators of Compromise

• Unusual or encoded content in the "Country" field of location records containing script tags, event handlers (e.g., onerror, onload), or JavaScript URIs
• Unexpected outbound connections from user browsers to unknown domains when accessing the Locations module
• Session anomalies indicating potential session hijacking or unauthorized access following legitimate user activity in the Locations section
• Database records containing HTML or JavaScript syntax in the country column of the locations table

Detection Strategies

Organizations can implement detection measures by monitoring application logs for suspicious activity patterns related to location record modifications. Web Application Firewalls (WAF) can be configured to detect and block common XSS payload patterns in request parameters targeting the Locations endpoint.

Security teams should audit existing location records in the database for any entries containing HTML tags, script elements, or JavaScript event handlers. Regular security scanning of the Snipe-IT instance using DAST (Dynamic Application Security Testing) tools can help identify this and similar vulnerabilities.

SentinelOne Singularity provides behavioral detection capabilities that can identify suspicious JavaScript execution patterns in browser contexts, helping detect when XSS payloads attempt to exfiltrate data or perform unauthorized actions.

Monitoring Recommendations

Implement continuous monitoring of the Snipe-IT application logs for unusual modifications to location records, particularly focusing on the Country field. Configure alerting for any location entries that contain special characters commonly associated with XSS attacks such as <, >, ", ', or encoded variants.

Network monitoring should be established to detect unexpected data exfiltration attempts from client browsers accessing the Snipe-IT interface. Additionally, monitor for unusual API activity that could indicate session hijacking following XSS exploitation.

How to Mitigate CVE-2025-65622

Immediate Actions Required

• Upgrade Snipe-IT to version 8.3.4 or later immediately
• Audit all existing location records in the database for suspicious content in the Country field
• Review access logs for any indication of prior exploitation attempts
• Implement Content Security Policy (CSP) headers to mitigate XSS impact if immediate patching is not possible
• Consider temporarily restricting access to the Locations module to trusted administrators only

Patch Information

The vulnerability has been addressed in Snipe-IT version 8.3.4. Organizations running affected versions should upgrade to this release or later to remediate the vulnerability. The patch implements proper input validation and output encoding for the Country field in the Locations module.

For additional technical details and patch verification, refer to the official Snipe-IT product page at http://snipeitapp.com and the security research documentation at https://github.com/firef0x00/vulnerability-research/tree/main/CVE-2025-65622.

Workarounds

If immediate patching is not feasible, organizations can implement temporary mitigations:

Implement strict Content Security Policy headers to prevent inline script execution. This can significantly reduce the impact of XSS attacks by blocking unauthorized JavaScript from executing in the browser context.

# Example Apache configuration to add CSP headers
# Add to your .htaccess or virtual host configuration
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; object-src 'none';"

Additionally, restrict permissions for creating and modifying location records to trusted administrators only until the patch can be applied. Regular database audits should be performed to identify and sanitize any potentially malicious entries in the Country field. Consider deploying a Web Application Firewall (WAF) with XSS detection rules enabled to provide an additional layer of defense.