CVE-2025-27603

9.1 CRITICAL

📋 TL;DR

This vulnerability in XWiki Confluence Migrator Pro allows unprivileged users without programming rights to execute arbitrary code by exploiting unescaped translations in the Migration Page template. It affects all XWiki instances using vulnerable versions of the Confluence Migrator Pro extension. Attackers can achieve remote code execution on the XWiki server.

💻 Affected Systems

Products:
  • XWiki Confluence Migrator Pro
Versions: All versions before 1.2.0
Operating Systems: All platforms running XWiki
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the Confluence Migrator Pro extension to be installed and enabled. XWiki instances without this extension are not affected.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full server compromise allowing attackers to execute arbitrary system commands, access sensitive data, install malware, or pivot to other systems.

🟠

Likely Case

Remote code execution leading to data theft, privilege escalation, or deployment of web shells for persistent access.

🟢

If Mitigated

Limited impact if proper network segmentation and least privilege principles are implemented, though code execution would still be possible.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires a user account but no special privileges. The vulnerability is in template rendering, making exploitation straightforward once identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.0

Vendor Advisory: https://github.com/xwikisas/application-confluence-migrator-pro/security/advisories/GHSA-6qvp-39mm-95v8

Restart Required: No

Instructions:

1. Access XWiki administration panel. 2. Navigate to Extensions. 3. Update Confluence Migrator Pro to version 1.2.0. 4. Clear template cache if available.

🔧 Temporary Workarounds

Disable Confluence Migrator Pro Extension

all

Temporarily disable the vulnerable extension until patching is possible.

Navigate to XWiki Admin > Extensions > Confluence Migrator Pro > Disable

Restrict User Permissions

all

Temporarily restrict user permissions to prevent exploitation.

Navigate to XWiki Admin > Rights > Restrict page creation and editing permissions

🧯 If You Can't Patch

  • Remove the Confluence Migrator Pro extension entirely from the XWiki instance.
  • Implement strict network segmentation and firewall rules to limit access to the XWiki instance.

🔍 How to Verify

Check if Vulnerable:

Check the installed version of Confluence Migrator Pro in XWiki Admin > Extensions. If version is below 1.2.0, the system is vulnerable.

Check Version:

Check via XWiki web interface: Admin > Extensions > Confluence Migrator Pro

Verify Fix Applied:

Confirm Confluence Migrator Pro version is 1.2.0 or higher in XWiki Admin > Extensions.

📡 Detection & Monitoring

Log Indicators:

  • Unusual page creation events using Migration Page template
  • Suspicious template rendering errors
  • Unexpected system command execution

Network Indicators:

  • Unusual outbound connections from XWiki server
  • Traffic patterns indicating web shell communication

SIEM Query:

source="xwiki.log" AND ("Migration Page" OR "confluence-migrator") AND (error OR exception OR "template rendering")

🔗 References

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