CVE-2026-33437Stirling PDF: Stored XSS in Info Summary

Description

Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 2.0.0, the Get Info workflow in app/core/src/main/resources/templates/security/get-info-on-pdf.html inserts untrusted PDF Title and Author metadata into the summary-text element with innerHTML, allowing a malicious PDF to execute stored cross-site scripting when a user clicks Get Info and to access browser-session data or modify page content. This issue is fixed in version 2.0.0.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-qc47-qgh9-xj63
• https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v2.0.0