CVE-2026-34071

MEDIUM

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

Title source: cna

Description

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.

References (1)

Core 1

Core References

X_Refsource_Confirm x_refsource_confirm

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

Scores

CVSS v3 5.4

EPSS 0.0026

EPSS Percentile 17.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (3)

stirling/stirling_pdf 2.7.3

Stirling-Tools/Stirling-PDF = 2.7.3

stirlingpdf/stirling_pdf 2.7.3

Published Mar 26, 2026

Tracked Since Mar 26, 2026