CVE-2026-33436
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
62/100
Published: 2026-04-17
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
Scope Change
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
Required
S:
Changed
C:
Low
I:
Low
A:
None
Description
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 Software (1)
| Vendor | Product | Version |
|---|---|---|
| stirlingpdf | stirling_pdf | < 2.0.0 |
References & Advisories (1)
Exploit
Vendor Advisory