CVE-2025-7799
📋 TL;DR
This reflected XSS vulnerability in Zirve Information Technologies' e-Taxpayer Accounting Website allows attackers to inject malicious scripts into web pages viewed by other users. It affects all users of the vulnerable website versions, potentially compromising their sessions and data.
💻 Affected Systems
- Zirve Information Technologies Inc. E-Taxpayer Accounting Website
⚠️ 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, redirect users to malicious sites, perform actions on behalf of authenticated users, or install malware through the compromised web application.
Likely Case
Session hijacking, credential theft, and unauthorized actions performed in the context of authenticated users accessing malicious links.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Reflected XSS typically requires user interaction (clicking malicious link) but is technically simple to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-26-0019
Restart Required: No
Instructions:
1. Contact Zirve Information Technologies for patch information. 2. Monitor vendor communications for updates. 3. Apply patches immediately when available.
🔧 Temporary Workarounds
Implement Web Application Firewall (WAF)
allDeploy a WAF with XSS protection rules to filter malicious input.
Enable Content Security Policy
allImplement strict CSP headers to restrict script execution sources.
Content-Security-Policy: default-src 'self'; script-src 'self'
🧯 If You Can't Patch
- Implement input validation and output encoding at the application layer
- Disable affected functionality or restrict access to vulnerable endpoints
🔍 How to Verify
Check if Vulnerable:
Test for XSS by injecting script payloads into input fields and URL parameters, then check if they execute in browser responses.Check Version:
Check application version in admin interface or contact vendor for version identification method.Verify Fix Applied:
Verify that script injections are properly sanitized and do not execute in browser responses.📡 Detection & Monitoring
Log Indicators:
- Unusual long parameter values in web logs
- Requests containing script tags or JavaScript code in parameters
- Multiple failed XSS attempts from same source
Network Indicators:
- HTTP requests with suspicious parameters containing script elements
- Traffic patterns showing repeated parameter manipulation
SIEM Query:
source="web_server" AND (param="<script>" OR param="javascript:" OR param="onerror=" OR param="onload=")