CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.
| Vendor | Atlassian |
|---|---|
| Product | Confluence Data Center and Server |
| Date added to KEV | 2023-10-05 |
| Due date (BOD 22-01) | 2023-10-13 |
| Known ransomware campaign use | Known |
| CWE | Not listed in feed |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA. |
What to do
- Identify every instance of Atlassian Confluence Data Center and Server in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.
- Federal civilian agencies must act by 2023-10-13 under BOD 22-01; other organizations can use the same date as a target.
- Because ransomware use is known, check for signs of compromise and confirm backups are offline and tested.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
This CVE is flagged by CISA as known to be used in ransomware campaigns. Rehearse your response before you need it: Ransomware tabletop exercise kit (Runbook Foundry).