Auth bypass in Atlassian Confluence Data Center
CVE-2023-22518
All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper Authorization vulnerability allows an unauthenticated attacker to reset Confluence and create a Confluence instance administrat…
Vulnerability class: Broken Access Control
EPSS: 1.000 (100.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Atlassian Confluence Data Center — versions < 1.0.0, >= 1.0.0, >= 7.19.16
- Atlassian Confluence_data_center — versions 8.6.0
- Atlassian Confluence Server — versions < 1.0.0, >= 1.0.0, >= 7.19.16
- Atlassian Confluence_server — versions 8.6.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- security@atlassian.com (Mitigation, Issue Tracking, Vendor Advisory)
- security@atlassian.com (Mitigation, Issue Tracking, Vendor Advisory)
- security@atlassian.com (Exploit, VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2023-22518?
- CVE-2023-22518 is a critical-severity vulnerability in Atlassian Confluence Data Center, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2023-10-31.
- How severe is CVE-2023-22518?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-22518 known to be exploited?
- Yes. CVE-2023-22518 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-11-07), indicating it is being actively exploited. 59 public proof-of-concept repositories are indexed.