Cloudanix VulnDB

CVE-2026-33436

Low · 3.1

CVSS

3.1

EPSS

0.2%

Published

Apr 17, 2026

CISA due date

—

The record

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.

Affected packages

Ecosystem Package Introduced Fixed

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