CVEs / CVE-2023-22515
CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
- Known exploited in the CISA KEV catalog since 5 Oct 2023
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99.2% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
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 unauthorized Confluence administrator accounts and access Confluence instances. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Atlassian Confluence Data Center | >= 8.0.0 | — |
| Atlassian Confluence Data Center | >= 8.0.1 | — |
| Atlassian Confluence Data Center | >= 8.0.2 | — |
| Atlassian Confluence Data Center | >= 8.0.3 | — |
| Atlassian Confluence Data Center | >= 8.1.3 | — |
| Atlassian Confluence Data Center | >= 8.1.4 | — |
| Atlassian Confluence Data Center | >= 8.2.0 | — |
| Atlassian Confluence Data Center | >= 8.2.1 | — |
| Atlassian Confluence Data Center | >= 8.2.2 | — |
| Atlassian Confluence Data Center | >= 8.2.3 | — |
| Atlassian Confluence Data Center | >= 8.3.0 | — |
| Atlassian Confluence Data Center | >= 8.3.1 | — |
| Atlassian Confluence Data Center | >= 8.3.2 | — |
| Atlassian Confluence Data Center | >= 8.4.0 | — |
| Atlassian Confluence Data Center | >= 8.4.1 | — |
| Atlassian Confluence Data Center | >= 8.4.2 | — |
| Atlassian Confluence Data Center | >= 8.5.0 | — |
| Atlassian Confluence Data Center | >= 8.5.1 | — |
| Atlassian Confluence Server | >= 8.0.0 | — |
| Atlassian Confluence Server | >= 8.0.1 | — |
| Atlassian Confluence Server | >= 8.0.2 | — |
| Atlassian Confluence Server | >= 8.0.3 | — |
| Atlassian Confluence Server | >= 8.1.3 | — |
| Atlassian Confluence Server | >= 8.1.4 | — |
| Atlassian Confluence Server | >= 8.2.0 | — |
| Atlassian Confluence Server | >= 8.2.1 | — |
| Atlassian Confluence Server | >= 8.2.2 | — |
| Atlassian Confluence Server | >= 8.2.3 | — |
| Atlassian Confluence Server | >= 8.3.0 | — |
| Atlassian Confluence Server | >= 8.3.1 | — |
Exploitation
| In CISA KEV since | 5 Oct 2023 |
|---|---|
| Due date for US federal agencies | 13 Oct 2023 |
| Used in ransomware campaigns | Known |
| 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. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-20 |
References
- CVE-2023-22515 on NVD
- CVE-2023-22515 in the CISA KEV catalog
- https://confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html (cited by CISA)
- http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515 Vendor Advisory
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276 Vendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-92475 Issue Tracking, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22515 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.