🛡️ CVE-2026-33436
🟢 CVSS 3.1 — Low ⚠️ Exploit Public CWE-20 NVD
3.1
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity LOW
CVSS Score 3.1
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE CWE-20
Public Exploit ⚠️ Yes
Source NVD
Published 2026-04-17
Updated 2026-06-02
Modified 2026-05-13
Fix URL N/A

Affected Packages

Software From version Fixed in
stirling-pdf — 2.0.0
unknown — —

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