CVE-2026-33436

| EUVD-2026-23513 LOW
2026-04-17 GitHub_M
XSS File Upload
3.1
CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

2
patch_available
Apr 17, 2026 - 21:16 EUVD
Analysis Generated
Apr 17, 2026 - 21:11 vuln.today

DescriptionNVD

Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. In versions prior to 2.0.0, file upload endpoints render user-supplied filenames directly into HTML using unsafe methods like innerHTML without sanitization. An attacker can craft a file with a malicious filename containing JavaScript that executes in the uploading user's browser context, resulting in reflected XSS. The issue affects numerous upload endpoints across the application. The issue has been fixed in version 2.0.0.

AnalysisAI

Reflected cross-site scripting (XSS) in Stirling-PDF versions before 2.0.0 allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser by uploading a file with a malicious filename containing script code. The vulnerability affects multiple file upload endpoints that render user-supplied filenames directly into HTML via unsafe DOM manipulation methods without sanitization. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Share

CVE-2026-33436 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy