CVE-2025-55161
moderate-risk
Published 2025-08-11
Stirling-PDF is a locally hosted web application that performs various operations on PDF files. Prior to version 1.1.0, when using the /api/v1/convert/markdown/pdf endpoint to convert Markdown to PDF, the backend calls a third-party tool to process it and includes a sanitizer for security sanitization which can be bypassed and result in SSRF. This issue has been patched in version 1.1.0.
Do I need to act?
~
5.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Stirling Pdf
Affected Vendors
43
/ 100
moderate-risk
Severity
29/34 · Critical
Exploitability
9/34 · Low
Exposure
5/34 · Minimal