Vulnerability in Atlassian Confluence Data Center
CVE-2023-22515
Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauth…
EPSS: 0.943 (100.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Atlassian Confluence Data Center — versions < 8.0.0, >= 8.0.0, >= 8.0.1
- Atlassian Confluence Server — versions < 8.0.0, >= 8.0.0, >= 8.0.1
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. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2023-22515?
- CVE-2023-22515 is a critical-severity vulnerability in Atlassian Confluence Data Center. CVSS score: 10.0/10. Published 2023-10-04.
- How severe is CVE-2023-22515?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2023-22515 known to be exploited?
- Yes. CVE-2023-22515 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-10-05), indicating it is being actively exploited. 136 public proof-of-concept repositories are indexed.