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How the CVE Works
The vulnerability exists in Harbor’s repository description page, where insufficient input sanitization allows attackers to inject malicious JavaScript code. When a user views the repository details, the stored XSS payload executes in their browser context. This can lead to session hijacking, unauthorized actions, or data theft. The flaw affects multiple versions due to improper validation of user-supplied descriptions during rendering.
DailyCVE Form
Platform: Harbor
Version: 2.12.0-2.12.3, 2.13.0-2.13.1, <=2.11.2
Vulnerability: Stored XSS
Severity: Medium
Date: 2025-07-23
Prediction: Patch by 2025-08-06
What Undercode Say
curl -X GET "https://vulnerable-harbor/api/repositories"
fetch('/api/repositories/1', {method: 'POST', body: '{"description":"<script>alert(1)</script>"}'});
How Exploit
1. Craft malicious repository description with `
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