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Vulnerability record · CVE-2026-33437 · published 17 August 2026

CVE-2026-33437: Cross-site scripting vulnerability

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.

8.1 CVSS 3.1 High EPSS 0.40% · top 68.5% CWE-79 · Cross-site scripting Awaiting Analysis
8.1CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
18 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-33437), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.