Vulnerability details

CVE-2025-55161

Stirling-Tools Stirling-PDF

Stirling-PDF SSRF vulnerability on /api/v1/convert/markdown/pdf

CVSS 3.1
8.6High

Official description

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.

CVSS scores

ScoreVersionSourceVector
8.6High 3.1 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Affected products

VendorProductVersionsSource
Stirling-Tools Stirling-PDF < 1.1.0 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2025-08-12
Last updated
2025-08-12
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

2.19%
Probability of exploitation in 30 days
82.5%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
Proof of concept
Technical impact
Partial

Weaknesses (CWE)

  • CWE-918
    Server-Side Request Forgery (SSRF)