CVE-2025-31487

7.7 HIGH
XXE

📋 TL;DR

This vulnerability allows authenticated XWiki users to exploit the JIRA macro to read arbitrary local files on the XWiki server via XML External Entity (XXE) injection. Attackers can specify a malicious JIRA URL that returns XML with a DOCTYPE pointing to local files, exposing sensitive system data. All XWiki instances with the vulnerable JIRA extension installed are affected.

💻 Affected Systems

Products:
  • XWiki JIRA Extension
Versions: All versions before 8.6.5
Operating Systems: All operating systems running XWiki
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the JIRA macro to be installed and enabled. The vulnerability is exploitable by any authenticated XWiki user who can edit their user profile wiki page.

⚠️ 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

Complete server compromise through reading sensitive files like /etc/passwd, SSH keys, configuration files, or database credentials, potentially leading to privilege escalation or lateral movement.

🟠

Likely Case

Unauthorized reading of sensitive server files containing credentials, configuration data, or user information by authenticated malicious users.

🟢

If Mitigated

Limited impact with proper file permissions, network segmentation, and monitoring that detects unusual file access patterns.

🌐 Internet-Facing: HIGH - Internet-facing XWiki instances allow authenticated external users to exploit this vulnerability.
🏢 Internal Only: HIGH - Internal authenticated users can exploit this to read sensitive server files.

🎯 Exploit Status

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

Exploitation requires authenticated access but is straightforward using XXE techniques. Public advisory includes technical details that facilitate exploitation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 8.6.5

Vendor Advisory: https://github.com/xwiki-contrib/jira/security/advisories/GHSA-wc53-4255-gw3f

Restart Required: Yes

Instructions:

1. Backup your XWiki instance. 2. Update the JIRA extension to version 8.6.5 or later via the XWiki Extension Manager. 3. Restart the XWiki application server. 4. Verify the update was successful.

🔧 Temporary Workarounds

Disable JIRA Macro

all

Temporarily disable the vulnerable JIRA macro to prevent exploitation while planning the update.

Edit XWiki configuration to disable the JIRA macro or remove it from the Extension Manager

Restrict User Profile Editing

all

Limit which users can edit their profile wiki pages to reduce attack surface.

Configure XWiki rights to restrict profile editing to administrators only

🧯 If You Can't Patch

  • Implement strict network controls to prevent XWiki servers from making outbound HTTP requests to untrusted JIRA URLs.
  • Deploy file integrity monitoring and audit logging to detect unauthorized file access attempts.

🔍 How to Verify

Check if Vulnerable:

Check the JIRA extension version in XWiki Administration > Extension Manager. If version is below 8.6.5, the system is vulnerable.

Check Version:

Check XWiki logs or Extension Manager for 'jira' extension version

Verify Fix Applied:

Confirm the JIRA extension shows version 8.6.5 or higher in the Extension Manager and test that the JIRA macro functions properly without allowing XXE.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file access patterns in server logs
  • XML parsing errors with local file paths
  • Multiple failed JIRA macro executions with unusual URLs

Network Indicators:

  • Outbound HTTP requests from XWiki server to unusual JIRA URLs
  • XML responses containing local file references

SIEM Query:

source="xwiki.log" AND ("DOCTYPE" OR "file:" OR "localhost") AND "jira"

🔗 References

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