CVE-2026-19447 Overview
CVE-2026-19447 is a stored cross-site scripting (XSS) vulnerability affecting FileOrbis from Fileorbis Informatics Services Trade Inc. The flaw stems from improper neutralization of user input during web page generation [CWE-79]. Attackers with low-privilege authenticated access can inject persistent script payloads that execute in the browsers of other users who view the affected content. The issue impacts all versions of FileOrbis prior to 16.5. Because the scope is changed per the CVSS vector, injected scripts can affect resources beyond the vulnerable component. The vulnerability requires user interaction to trigger the stored payload.
Critical Impact
Authenticated attackers can store malicious JavaScript that executes in other users' sessions, enabling session token theft, phishing, and unauthorized actions within the FileOrbis file management interface.
Affected Products
- FileOrbis versions prior to 16.5
- Vendor: Fileorbis Informatics Services Trade Inc.
- Deployments exposing the FileOrbis web interface to authenticated users
Discovery Timeline
- 2026-08-18 - CVE-2026-19447 published to NVD
- 2026-08-18 - Last updated in NVD database
Technical Details for CVE-2026-19447
Vulnerability Analysis
The vulnerability is a stored cross-site scripting issue in the FileOrbis web application. FileOrbis fails to properly neutralize user-supplied input before it is rendered in generated web pages. An authenticated attacker can submit input containing HTML or JavaScript that is persisted server-side. When another user renders the affected view, the browser executes the injected script in the context of the FileOrbis origin.
Exploitation requires low-level privileges and victim interaction, such as viewing a shared resource or navigating to a page that renders the tainted content. The scope is changed, meaning the injected payload can influence resources beyond the vulnerable component, including data belonging to other authenticated principals.
Root Cause
The root cause is missing or insufficient output encoding when rendering attacker-controlled fields into HTML responses. Input passed through file, folder, or metadata fields is stored and later reflected without contextual escaping, mapping to [CWE-79].
Attack Vector
The attack vector is network-based over the FileOrbis web interface. An authenticated user submits a crafted payload into a field that is stored and later served to other users. When a victim loads the rendered page, the payload executes in the victim's session. Typical outcomes include session cookie exfiltration, forced browsing, credential harvesting through injected forms, and unauthorized actions performed on behalf of the victim.
See the Siber Güvenlik Notification TR-26-0850 for vendor-referenced details.
Detection Methods for CVE-2026-19447
Indicators of Compromise
- Stored FileOrbis fields containing <script>, onerror=, onload=, javascript:, or encoded variants such as <script
- Unexpected outbound requests from user browsers to attacker-controlled domains following FileOrbis page loads
- Anomalous session token reuse from IP addresses that differ from the originating authenticated user
Detection Strategies
- Inspect FileOrbis application logs for POST or PUT requests containing HTML tags, event handlers, or script sinks in file names, folder names, and metadata fields
- Deploy a web application firewall rule that flags stored content containing script constructs within FileOrbis request bodies
- Correlate authentication events with subsequent cross-user session activity to identify token theft following XSS execution
Monitoring Recommendations
- Enable verbose HTTP request logging on the FileOrbis application tier and forward logs to a centralized analytics platform
- Monitor Content Security Policy violation reports if CSP is deployed in front of FileOrbis
- Alert on new administrator sessions or privilege changes shortly after users interact with attacker-controlled file objects
How to Mitigate CVE-2026-19447
Immediate Actions Required
- Upgrade FileOrbis to version 16.5 or later on all deployments
- Audit stored file, folder, and metadata fields for existing script payloads and remove tainted records
- Rotate active user sessions and API tokens after applying the patch to invalidate any tokens harvested through prior exploitation
Patch Information
Fileorbis Informatics Services Trade Inc. addresses this vulnerability in FileOrbis 16.5. Refer to the Siber Güvenlik Notification TR-26-0850 for advisory details and coordinate with the vendor for supported upgrade paths.
Workarounds
- Restrict FileOrbis access to trusted authenticated users until the upgrade is applied
- Deploy a strict Content Security Policy that disallows inline scripts and untrusted script sources for the FileOrbis origin
- Configure a web application firewall to block requests containing script tags or event handlers targeting FileOrbis endpoints
# Example WAF rule concept (adapt to your platform)
# Block stored payloads containing script constructs in FileOrbis requests
SecRule REQUEST_URI "@beginsWith /fileorbis/" \
"chain,deny,status:403,id:1026194471,msg:'Potential XSS payload in FileOrbis request'"
SecRule ARGS "@rx (?i)(<script|onerror\s*=|onload\s*=|javascript:)" "t:none"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
