CVE-2026-33437

HIGH CVSS 3.1: 8.1 EPSS 0.40%
Updated Oct 23, 2026
Stirling-Pdf
Parameter Value
CVSS 8.1 (HIGH)
Fixed In 2.0.0
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Stirling-Pdf
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1