CVE-2026-34071 — Stirling-PDF has Stored Cross Site Scripting (XSS) via EML-to-HTML Export

CVE-2026-34071

Stirling-PDF has Stored Cross Site Scripting (XSS) via EML-to-HTML Export PUBLISHED

Description (CNA)

Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. In version 2.7.3, the /api/v1/convert/eml/pdf endpoint with parameter downloadHtml=true returns unsanitized HTML from the email body with Content-Type: text/html. An attacker who sends a malicious email to a Stirling-PDF user can achieve JavaScript execution when that user exports the email using the "Download HTML intermediate file" feature. Version 2.8.0 fixes the issue.

Affected (CNA)

Vendor / product	Versions
Stirling-Tools / Stirling-PDF	affected = 2.7.3

CWE

CWE-79

References

https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-xmhg-fv84-jgfc

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.