SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-55151

Prior to version 1.1.0, the "convert file to pdf" functionality (/api/v1/convert/file/pdf) uses LibreOffice's unoconvert tool for conversion, and SSRF vulnerabilities exist during the conversion process.

CRITICAL 9.8EPSS 0.36%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. Prior to version 1.1.0, the "convert file to pdf" functionality (/api/v1/convert/file/pdf) uses LibreOffice's unoconvert tool for conversion, and SSRF vulnerabilities exist during the conversion process. This issue has been patched in version 1.1.0.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.36% probability · 29th percentile
CISA KEV
Not listed
Weakness
CWE-918
Affected
stirlingpdf/stirling pdf
Source
security-advisories@github.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.