CVE-2025-13183
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in Hotech Software's Otello allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects Otello versions 2.4.0 through 2.4.3. All users of affected versions are at risk.
💻 Affected Systems
- Hotech Software Otello
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, deface websites, or redirect users to malicious sites, potentially leading to complete account compromise.
Likely Case
Attackers will typically steal session cookies to hijack user accounts, perform unauthorized actions, or deploy malware through the compromised application.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users, preventing exploitation.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity once the injection point is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4.4
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-25-0476
Restart Required: Yes
Instructions:
1. Download Otello version 2.4.4 from official vendor sources. 2. Backup current installation and data. 3. Stop Otello services. 4. Install the update following vendor instructions. 5. Restart services and verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize user inputs before processing
Implementation depends on application framework; typically involves adding input sanitization functions
Content Security Policy
allImplement CSP headers to restrict script execution sources
Add Content-Security-Policy header to web server configuration
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block XSS payloads
- Disable or restrict user input fields that accept HTML/JavaScript content
🔍 How to Verify
Check if Vulnerable:
Check Otello version in administration panel or configuration files. If version is between 2.4.0 and 2.4.3, system is vulnerable.Check Version:
Check Otello web interface administration panel or configuration files for version informationVerify Fix Applied:
After patching, verify version shows 2.4.4 or higher in administration panel. Test input fields with basic XSS payloads to ensure they're properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual script tags or JavaScript in user input logs
- Multiple failed login attempts from same IP after script injection
Network Indicators:
- HTTP requests containing script tags or JavaScript in parameters
- Unusual outbound connections from user browsers
SIEM Query:
web.url:*<script* OR web.param:*javascript:*