CVE-2025-30186
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability where attackers can upload malicious files containing script code. When users follow attacker-controlled links to these files, the scripts execute in the user's browser session, potentially allowing account takeover and data theft. This affects systems running vulnerable versions of Open-Xchange AppSuite.
💻 Affected Systems
- Open-Xchange AppSuite
⚠️ 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
Complete account compromise leading to data exfiltration, unauthorized actions in user's name, and potential lateral movement within the system.
Likely Case
Session hijacking, theft of sensitive information accessible to the user, and unauthorized actions within the user's permissions.
If Mitigated
Limited impact with proper input validation, content security policies, and user awareness training.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) and file upload capability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to vendor advisory for specific patched versions
Vendor Advisory: https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2025/oxas-adv-2025-0003.json
Restart Required: Yes
Instructions:
1. Review vendor advisory for affected versions. 2. Apply provided updates and patch releases. 3. Restart affected services. 4. Verify patch application.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution from untrusted sources
Add 'Content-Security-Policy' header to web server configuration
File Upload Restrictions
allRestrict file types that can be uploaded and implement server-side validation
Configure web application to only allow specific safe file extensions
🧯 If You Can't Patch
- Implement strict input validation and output encoding for file upload functionality
- Deploy web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check Open-Xchange AppSuite version against vendor advisory for affected versionsCheck Version:
Check Open-Xchange documentation for version check command specific to your installationVerify Fix Applied:
Verify installed version matches or exceeds patched version specified in vendor advisory📡 Detection & Monitoring
Log Indicators:
- Unusual file upload patterns
- Multiple failed file upload attempts
- Suspicious file extensions being uploaded
Network Indicators:
- HTTP requests to uploaded files with suspicious parameters
- Outbound connections following file access
SIEM Query:
Search for file upload events followed by immediate access to same files from different user sessions