CVE-2024-39126
📋 TL;DR
Roundup versions before 2.4.0 are vulnerable to cross-site scripting (XSS) attacks when processing PDF, XML, and SVG documents containing malicious JavaScript. This allows attackers to execute arbitrary scripts in users' browsers when they view these documents. All Roundup installations using vulnerable versions are affected.
💻 Affected Systems
- Roundup Issue Tracker
📦 What is this software?
Roundup by Roundup Tracker
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, deface the application, or redirect users to malicious sites.
Likely Case
Session hijacking, credential theft, or limited account compromise through social engineering.
If Mitigated
Minimal impact with proper content security policies and input validation in place.
🎯 Exploit Status
Exploitation requires user interaction (viewing malicious document) and likely requires authenticated access to upload documents.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4.0
Vendor Advisory: https://www.roundup-tracker.org/docs/security.html#cve-announcements
Restart Required: Yes
Instructions:
1. Backup your Roundup instance. 2. Upgrade to Roundup 2.4.0 or later using pip: 'pip install --upgrade roundup'. 3. Restart the Roundup service. 4. Verify the upgrade completed successfully.
🔧 Temporary Workarounds
Disable document uploads
allTemporarily disable PDF, XML, and SVG file uploads in Roundup configuration.
Edit roundup configuration to remove or restrict file upload types
Implement content security policy
allAdd strict Content-Security-Policy headers to prevent script execution.
Add 'Content-Security-Policy: script-src 'self'' to web server configuration
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block malicious document uploads
- Restrict document upload permissions to trusted users only
🔍 How to Verify
Check if Vulnerable:
Check Roundup version: if version is less than 2.4.0, system is vulnerable.Check Version:
python -c "import roundup; print(roundup.__version__)"Verify Fix Applied:
Confirm version is 2.4.0 or higher and test document upload functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual document uploads
- Multiple failed upload attempts
- Suspicious file names
Network Indicators:
- Uploads of PDF/XML/SVG files containing script tags
- Unusual outbound connections after document viewing
SIEM Query:
source="roundup.log" AND ("upload" OR "document") AND ("pdf" OR "xml" OR "svg")