{"schema":"threatline.record/2","record":{"id":"CVE-2023-22518","aliases":[],"summary":"Atlassian Confluence Data Center and Server Improper Authorization Vulnerability","details":"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.","categories":["Applications & CMS"],"product":"Confluence Data Center and Server","vendor":"Atlassian","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-22518","source_modified_at":"2025-10-21T23:05:32.975Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Confluence Data Center","vendor":"Atlassian","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"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-22518","source_modified_at":"2025-10-21T23:05:32.975Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Confluence Server","vendor":"Atlassian","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"}],"defaultStatus":null}],"fixed_versions":[],"cvss":10,"severity":"Critical","kev":{"listed":true,"date_added":"2023-11-07","due_date":"2023-11-28","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Known"},"epss":{"probability":0.99999,"percentile":0.99996,"score_date":"2026-10-23"},"published_at":"2023-10-31T14:30:00.418Z","modified_at":"2025-10-21T23:05:32.975Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2023-22518","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:05:32.975Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_confluence_unauth_backup.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2023-10-31"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-22518.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2023-22518","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Nuclei","EPSS"],"references":[{"url":"https://confluence.atlassian.com/security/cve-2023-22518-improper-authorization-vulnerability-in-confluence-data-center-and-server-1311473907.html","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-22518","source":"CISA KEV"},{"source":"CVE List","url":"https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907","tags":["x_transferred"]},{"source":"CVE List","url":"https://jira.atlassian.com/browse/CONFSERVER-93142","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22518","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"partial","assessed_at":"2025-02-03T16:33:26.216427Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"Atlassian Confluence Unauth JSON setup-restore Improper Authorization leading to RCE (CVE-2023-22518)","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_confluence_unauth_backup.rb","date":"2023-10-31","added":"2023-12-14","check":true},{"source":"Nuclei","kind":"Scanner template","name":"Atlassian Confluence Server - Improper Authorization","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-22518.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:05:32.975Z","content_hash":"8a85010f4959b908833f973ec77c7f79c3439226f97d5c75ddfd370f97150eea"}}