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How the CVE Works
CVE-2025-25620 exploits a stored XSS vulnerability in UnifiedTransform 2.0’s “Create assignment” function. Attackers inject malicious JavaScript payloads into input fields, which are then executed when other users view the assignment. The lack of proper input sanitization allows persistent script execution, leading to session hijacking, data theft, or unauthorized actions within the application.
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Platform: UnifiedTransform
Version: 2.0
Vulnerability: Stored XSS
Severity: Medium
Date: 06/23/2025
Prediction: Patch by 08/2025
What Undercode Say
curl -X POST -d "assignment=<script>alert('XSS')</script>" http://target/unifiedtransform/create
payload = "<img src=x onerror=stealCookies()>" requests.post(target_url, data={"assignment": payload})
How Exploit
1. Submit malicious script via “Create assignment.”
2. Script executes when admin/teacher views submissions.
3. Attacker hijacks sessions or exfiltrates data.
Protection from this CVE
- Sanitize user inputs.
- Implement CSP headers.
- Update to patched version.
Impact
- Session hijacking.
- Data leakage.
- Unauthorized actions.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode