CVE-2025-58114
📋 TL;DR
This CVE describes an improper input validation vulnerability in BlueSpice's CognitiveProcessDesigner extension that allows cross-site scripting (XSS) attacks. Attackers can inject malicious scripts that execute in users' browsers when they view specially crafted content. This affects BlueSpice installations running versions 5.0 through 5.1.1.
💻 Affected Systems
- BlueSpice MediaWiki with CognitiveProcessDesigner extension
📦 What is this software?
Bluespice by Hallowelt
⚠️ Risk & Real-World Impact
Worst Case
An attacker could steal session cookies, perform actions as authenticated users, deface pages, or redirect users to malicious sites, potentially leading to account compromise or data theft.
Likely Case
Attackers with access to create or edit content could embed malicious scripts that execute when other users view that content, potentially stealing session tokens or performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
Exploitation requires the attacker to have content creation/editing privileges or to trick users into submitting malicious input through vulnerable forms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: BlueSpice 5.1.2 or later
Vendor Advisory: https://en.wiki.bluespice.com/wiki/Security:Security_Advisories/BSSA-2025-05
Restart Required: No
Instructions:
1. Backup your BlueSpice installation and database. 2. Update BlueSpice to version 5.1.2 or later. 3. Verify the update completed successfully. 4. Test the CognitiveProcessDesigner functionality.
🔧 Temporary Workarounds
Disable CognitiveProcessDesigner Extension
allTemporarily disable the vulnerable extension until patching is possible
Edit LocalSettings.php and remove or comment out: wfLoadExtension('CognitiveProcessDesigner');
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to web server config or .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval';"
Adjust directives based on your specific requirements
🧯 If You Can't Patch
- Restrict content creation/editing permissions to trusted users only
- Implement web application firewall rules to block common XSS payload patterns
🔍 How to Verify
Check if Vulnerable:
Check BlueSpice version in the wiki footer or via Special:Version page. If version is between 5.0 and 5.1.1 inclusive, and CognitiveProcessDesigner extension is enabled, the system is vulnerable.Check Version:
Check Special:Version page in your BlueSpice installation or examine the wiki footer for version information.Verify Fix Applied:
After updating, verify version is 5.1.2 or higher via Special:Version page. Test CognitiveProcessDesigner functionality to ensure it works without allowing script injection.📡 Detection & Monitoring
Log Indicators:
- Unusual content edits containing script tags or JavaScript code
- Multiple failed input validation attempts in application logs
- Unexpected content submissions to CognitiveProcessDesigner forms
Network Indicators:
- HTTP requests containing suspicious script payloads in parameters
- Unusual outbound connections from user browsers after viewing specific content
SIEM Query:
source="webserver_logs" AND (uri="*CognitiveProcessDesigner*" OR uri="*Special:*") AND (message="*<script>*" OR message="*javascript:*" OR message="*onload=*" OR message="*onerror=*")