CVE-2023-22515Atlassian 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 Cent…
Updated under an hour ago ()
Does this affect you?
It affects Atlassian Confluence Data Center and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Oct 5, 2023; federal agencies had to remediate by Oct 13, 2023, and it is known to be used in ransomware. Treat that date as your deadline.
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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.
- CVSS
- 10.0 CRITICAL (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-20
- Known exploited
- Added to CISA KEV Oct 5, 2023; federal remediation due Oct 13, 2023; known ransomware useApply 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.
- EPSS (exploitation in the next 30 days)
- 99.22% (percentile 100)
- Assigned by
- atlassian
- NVD analysis
- Analyzed
- Record last updated
- Mar 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Atlassian Confluence Data Center atlassian:confluence_data_center (from the name) | before 8.0.0 not affected; from 8.0.0; from 8.0.1; from 8.0.2; from 8.0.3; from 8.1.3; from 8.1.4; from 8.2.0; and 14 more ranges | CNA record |
Atlassian Confluence Server atlassian:confluence_server (from the name) | before 8.0.0 not affected; from 8.0.0; from 8.0.1; from 8.0.2; from 8.0.3; from 8.1.3; from 8.1.4; from 8.2.0; and 14 more ranges | CNA record |
atlassian confluence_data_center atlassian:confluence_data_center | from 8.0.0 before 8.3.3; from 8.4.0 before 8.4.3; from 8.5.0 before 8.5.2 | NVD |
atlassian confluence_server atlassian:confluence_server | from 8.0.0 before 8.3.3; from 8.4.0 before 8.4.3; from 8.5.0 before 8.5.2 | NVD |
References
- http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.htmlexploit, third-party-advisory, vdb-entry
- https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515vendor-advisory
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276vendor-advisory
- https://jira.atlassian.com/browse/CONFSERVER-92475issue-tracking, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22515us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.