CVE-2026-94150: Omega Solution HRM OS XSS Vulnerability

CVE-2026-94150 Overview

CVE-2026-94150 is a cross-site scripting (XSS) vulnerability [CWE-79] in Omega Solution HRM OS through version 20260717. The flaw resides in an unknown function within /media/view/, part of the SVG File Upload component. An authenticated attacker can upload a crafted Scalable Vector Graphics (SVG) file containing embedded script content that executes in a victim's browser when the file is rendered. The exploit has been publicly disclosed, and the vendor did not respond to disclosure attempts.

Critical Impact
Public exploit code exists for this XSS vulnerability, and no vendor patch is available. Successful exploitation enables script execution in the context of the HRM OS application.

Affected Products

Omega Solution HRM OS versions up to and including 20260717
Component: SVG File Upload handler at /media/view/
No fixed version has been published by the vendor

Discovery Timeline

2026-09-21 - CVE-2026-94150 published to the National Vulnerability Database (NVD)
2026-09-24 - Last updated in NVD database

Technical Details for CVE-2026-94150

Vulnerability Analysis

The vulnerability is a stored cross-site scripting flaw triggered through SVG file uploads. SVG is an XML-based image format that natively supports <script> elements and JavaScript event handlers such as onload. When Omega Solution HRM OS accepts an uploaded SVG through the media handler and serves it back via /media/view/ without sanitization or a restrictive content type, embedded JavaScript executes in the browser of any user who opens the file.

Exploitation requires high privileges and user interaction, which reduces the practical attack surface. An attacker who already holds an authenticated account can plant a malicious SVG that fires when another user views it. Impact includes session token theft, forced actions in the victim's session, and phishing content injection scoped to the HRM OS origin.

Root Cause

The root cause is improper neutralization of input during web page generation [CWE-79]. The /media/view/ endpoint returns user-supplied SVG content with a rendering content type that allows the browser to execute embedded scripts. The upload path does not strip active content, does not enforce a safe Content-Disposition: attachment header, and does not apply a Content Security Policy that blocks inline scripts.

Attack Vector

The attack is remote and requires an authenticated session with elevated privileges in HRM OS. The attacker uploads an SVG file containing a <script> block or an event handler attribute. A second user must open or preview the file for the payload to execute. Because the payload runs under the HRM OS origin, it can read same-origin cookies not marked HttpOnly, invoke authenticated API calls, and manipulate application state visible to the victim.

No verified proof-of-concept code is reproduced here. Technical details are referenced in the GitHub PoC Vulnerability Issue and the VulDB CVE-2026-94150 Details entry.

Detection Methods for CVE-2026-94150

Indicators of Compromise

SVG files stored in the HRM OS media directory containing <script>, onload=, onerror=, or javascript: URI schemes
HTTP requests to /media/view/ returning image/svg+xml content with embedded JavaScript
Unexpected outbound requests from user browsers to attacker-controlled domains shortly after opening HRM OS media
New or modified SVG assets uploaded by accounts that do not typically manage media

Detection Strategies

Inspect uploaded SVG files at ingestion using an XML parser and flag any file containing script tags, event handler attributes, or external entity references
Monitor web server logs for POST requests uploading .svg files followed by GET requests to /media/view/ from different user sessions
Deploy browser-side alerting through Content Security Policy report-uri or report-to directives to capture inline script violations

Monitoring Recommendations

Alert on authenticated users uploading media outside expected business hours or in unusual volumes
Correlate SVG upload events with subsequent DOM-based anomalies such as cookie access or credential form injection
Retain HTTP request bodies for /media/ endpoints to support forensic review of upload payloads

How to Mitigate CVE-2026-94150

Immediate Actions Required

Disable SVG uploads in Omega Solution HRM OS or restrict media upload permissions to a minimal set of trusted administrators
Configure the web server to serve uploaded SVG files with Content-Disposition: attachment to prevent inline browser rendering
Apply a strict Content Security Policy that blocks inline scripts on pages that render user-uploaded media
Review existing SVG files in the media store and remove any that contain executable content

Patch Information

No vendor patch is available. According to the disclosure, Omega Solution was contacted before public release and did not respond. Organizations should treat all deployments up to and including version 20260717 as unpatched and apply compensating controls until the vendor publishes a fix. See the VulDB Vulnerability #408064 entry for tracking updates.

Workarounds

Proxy the /media/view/ endpoint through a web application firewall (WAF) rule that blocks responses containing <script or on\w+= patterns in image/svg+xml bodies
Rewrite the response content type for .svg downloads to application/octet-stream at the reverse proxy layer
Convert uploaded SVG files to a raster format such as PNG server-side before serving them to end users
Segment the HRM OS application behind network access controls to limit exposure to authenticated internal users only

bash

# Example nginx configuration to force SVG downloads instead of inline rendering
location ~* /media/view/.*\.svg$ {
    add_header Content-Disposition "attachment";
    add_header Content-Security-Policy "default-src 'none'; script-src 'none'";
    add_header X-Content-Type-Options "nosniff";
    default_type application/octet-stream;
}