CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
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
- 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
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.
- Exploitation confirmedCVE-2023-22518Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2023-22518 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Atlassian Confluence Data
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalexploitedCVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerabilitycisa-kev · 2024-01-24
- criticalexploitedCVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerabilitycisa-kev · 2023-10-05
- criticalexploitedCVE-2022-26134: Atlassian Confluence Server and Data Center Remote Code Execution Vulnerabilitycisa-kev · 2022-06-02
- criticalexploitedCVE-2019-3396: Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerabilitycisa-kev · 2021-11-03
- criticalexploitedCVE-2021-26084: Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection …cisa-kev · 2021-11-03
- criticalexploitedCVE-2019-3398: Atlassian Confluence Server and Data Center Path Traversal Vulnerabilitycisa-kev · 2021-11-03
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