CVE-2023-53735
📋 TL;DR
WEBIGniter 28.7.23 contains an unauthenticated cross-site scripting vulnerability in the user creation process. Attackers can inject malicious JavaScript that executes in victims' browsers, potentially stealing session cookies or performing actions as authenticated users. All systems running the vulnerable version are affected.
💻 Affected Systems
- WEBIGniter
⚠️ 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 steal administrator session cookies, gain full administrative access, and compromise the entire application and underlying server.
Likely Case
Session hijacking, credential theft, defacement, or redirection to malicious sites affecting users who access the vulnerable user creation page.
If Mitigated
Limited impact with proper input validation and output encoding, though XSS could still affect users who interact with malicious content.
🎯 Exploit Status
Exploit code is publicly available on Exploit-DB (ID 51900), making this easily weaponizable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch is available. Check the vendor website for updates and apply when released.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement server-side validation and HTML encoding for all user input fields in the user creation process.
Web Application Firewall (WAF)
allDeploy a WAF with XSS protection rules to block malicious payloads targeting the user creation endpoint.
🧯 If You Can't Patch
- Disable user creation functionality if not required
- Implement strict Content Security Policy (CSP) headers to mitigate script execution
🔍 How to Verify
Check if Vulnerable:
Test the user creation form by submitting a payload like <script>alert('XSS')</script> in user input fields and check if it executes.Check Version:
Check the WEBIGniter version in the application's admin panel or configuration files.Verify Fix Applied:
After applying workarounds, retest with the same payload to ensure it is properly sanitized or blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to user creation endpoints containing script tags or JavaScript code
- Multiple failed user creation attempts with suspicious payloads
Network Indicators:
- HTTP requests with XSS payloads in parameters targeting user creation URLs
SIEM Query:
source="web_server" AND (url="*/user/create*" OR url="*/user/add*") AND (request_body CONTAINS "<script>" OR request_body CONTAINS "javascript:")