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.
problem types: Improper Authorization
affected:
{
vendor: Atlassian
product: Confluence Data Center
versions:
version: < 1.0.0, status: unaffected
version: >= 1.0.0, status: affected
version: >= 7.19.16, status: unaffected
version: >= 8.3.4, status: unaffected
version: >= 8.4.4, status: unaffected
version: >= 8.5.3, status: unaffected
version: >= 8.6.1, status: unaffected
}
{
vendor: Atlassian
product: Confluence Server
versions:
version: < 1.0.0, status: unaffected
version: >= 1.0.0, status: affected
version: >= 7.19.16, status: unaffected
version: >= 8.3.4, status: unaffected
version: >= 8.4.4, status: unaffected
version: >= 8.5.3, status: unaffected
version: >= 8.6.1, status: unaffected
}
metrics:
cvssV3_0: [
version: 3.0
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
baseScore: 10
baseSeverity: CRITICAL
]