Is this vulnerability remotely exploitable over the network?

Yes, but only by authenticated users who can access the `/api/v1/convert/markdown/pdf` endpoint and upload ZIP archives. It is not exploitable by unauthenticated visitors.

What level of access does an attacker need to exploit this issue?

An attacker needs valid Stirling-PDF credentials with permission to invoke the markdown-to-PDF conversion API. No direct shell access is required; the attack is carried out through crafted ZIP uploads.

What is the safest general fix pattern?

The most robust fix is to confine all extracted entries to a dedicated directory by normalizing each archive entry's path, verifying that it remains under a predefined root, and rejecting any entry that attempts to escape that directory.

Severity:

HIGH RISK

(8.1)

Path Traversal via ZIP Extraction (CWE-22) in Stirling-PDF Markdown-to-PDF Conversion

CVE-2026-27625

Published:

Mar 20, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

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HIGH RISK

HIGH

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Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Path Traversal / Arbitrary File Write

CWE:

CWE-22;CWE-23

Impact:

Authenticated Arbitrary File Write

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Arbitrary File Write

CWE:

CWE-22;CWE-23

Impact:

Authenticated Arbitrary File Write

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Path Traversal via ZIP Extraction (CWE-22) in Stirling-PDF Markdown-to-PDF Conversion

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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