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CVE-2023-22518Atlassian Confluence Data Center and Server Improper Authorization Vulnerability

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.

9.8 CRITICALEPSS 99.99%⚡ Known Exploited (CISA KEV)NVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
9.8CRITICAL3.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0CRITICAL3.0atlassian (CNA)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA required action

⚡ Known exploited · remediation due Nov 28, 2023

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Details

CVE ID
CVE-2023-22518
Status
Analyzed
Assigner (CNA)
atlassian
Published
Oct 31, 2023
Last modified
2026-06-17 05:35 UTC
Weaknesses

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 14:02 UTC.