CVE-2025-55150
BaseFortify
Publication date: 2025-08-11
Last updated on: 2025-08-15
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| stirlingpdf | stirling_pdf | to 1.1.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-918 | The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability in Stirling-PDF occurs in versions prior to 1.1.0 when using the /api/v1/convert/html/pdf endpoint. The backend calls a third-party tool to convert HTML to PDF and uses a sanitizer for security. However, this sanitizer can be bypassed, leading to a Server-Side Request Forgery (SSRF) vulnerability. This means an attacker could potentially make the server perform unauthorized requests.
How can this vulnerability impact me? :
This vulnerability can allow an attacker to perform SSRF attacks, which may lead to unauthorized access to internal systems, exposure of sensitive data, or other malicious actions performed by the server on behalf of the attacker. The CVSS score of 8.6 indicates a high severity with potential high confidentiality impact, low integrity impact, and low availability impact.
What immediate steps should I take to mitigate this vulnerability?
Upgrade Stirling-PDF to version 1.1.0 or later, as this version includes a patch that fixes the SSRF vulnerability in the /api/v1/convert/html/pdf endpoint.