CVE-2023-22518

CriticalCVSS 9.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

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 administrator account. Using this account, an attacker can then perform all administrative actions that are available to Confluence instance administrator leading to - but not limited to - full loss of confidentiality, integrity and availability.

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
Atlassian	Confluence Data Center	>= 1.0.0
Atlassian	Confluence Server	>= 1.0.0

References

http://packetstormsecurity.com/files/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907Issue Tracking, Mitigation, Vendor Advisory
https://jira.atlassian.com/browse/CONFSERVER-93142Issue Tracking, Mitigation, Vendor Advisory
http://packetstormsecurity.com/files/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907Issue Tracking, Mitigation, Vendor Advisory
https://jira.atlassian.com/browse/CONFSERVER-93142Issue Tracking, Mitigation, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22518US Government Resource

Timeline

Published: Oct 31, 2023
Last modified: Jun 17, 2026
Added to CISA KEV: Nov 7, 2023
NVD status: Analyzed

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