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

criticalknown exploitedpublic exploitCVE-2023-22518
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Atlassian Confluence Data Center and Server contain an improper authorization vulnerability that can result in significant data loss when exploited by an unauthenticated attacker. There is no impact on confidentiality since the attacker cannot exfiltrate any data.

CSIRTS triage

vendor: Atlassianproduct: Confluence Data Center and ServerAuthentication bypassInformation disclosure
What
The vulnerability can result in significant data loss due to improper authorization.
Who is affected
Deployments of Atlassian Confluence Data Center and Server.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch provided by Atlassian.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-11-07
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-22518

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-22518coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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