Home / Vulnerabilities / CVE-2023-22518
CRITICAL SEVERITY Ransomware Linked
CVE-2023-22518 Atlassian · Confluence Data Center and Server

Atlassian Confluence Data Center and Server Improper Authorization Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

CRITICAL
10 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

94.38 %
Predictive Probability
Percentile Rank
100.0 th

Documented as more likely to be exploited than 100.0% of known CVEs.

Detection Date

Nov 07, 2023

Remediation Due

Nov 28, 2023

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

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

External Intelligence

https://confluence.atlassian.com/security/cve-2023-22518-improper-authorization-vulnerability-in-confluence-data-center-and-server-1311473907.html

https://confluence.atlassian.com/security/cve-2023-22518-improper-authorization-vulnerability-in-confluence-data-center-and-server-1311473907.html
NVD

National Vulnerability Database

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