{"id":"CVE-2023-22518","aliases":["EUVD-2023-26658","GHSA-8prx-84h6-4fr5"],"status":"published","title":"All versions of Confluence Data Center and Server are affected by this unexploited vulnerability....","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. \n\nAtlassian 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.","severity":{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.99999,"percentile":0.99996,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-863"],"published":"2023-10-31T14:30:00Z","modified":"2026-06-17T05:35:37Z","kev":{"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.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2023-11-07"},{"source":"kev","since":"2023-11-07"}],"exploits":[{"source":"pocgithub","id":"ForceFledgling/CVE-2023-22518","title":"ForceFledgling/CVE-2023-22518","date":"2023-10-31","url":"https://github.com/ForceFledgling/CVE-2023-22518"},{"source":"metasploit","id":"exploit/multi/http/atlassian_confluence_unauth_backup","title":"Atlassian Confluence Unauth JSON setup-restore Improper Authorization leading to RCE (CVE-2023-22518)","type":"exploit","platform":"Java","date":"2023-10-31","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/multi/http/atlassian_confluence_unauth_backup"},{"source":"pocgithub","id":"davidfortytwo/CVE-2023-22518","title":"davidfortytwo/CVE-2023-22518","date":"2023-11-02","url":"https://github.com/davidfortytwo/CVE-2023-22518"},{"source":"pocgithub","id":"RevoltSecurities/CVE-2023-22518","title":"RevoltSecurities/CVE-2023-22518","date":"2023-11-05","url":"https://github.com/RevoltSecurities/CVE-2023-22518"},{"source":"pocgithub","id":"0x0d3ad/CVE-2023-22518","title":"0x0d3ad/CVE-2023-22518","date":"2023-11-09","url":"https://github.com/0x0d3ad/CVE-2023-22518"},{"source":"pocgithub","id":"C1ph3rX13/CVE-2023-22518","title":"C1ph3rX13/CVE-2023-22518","date":"2023-11-28","url":"https://github.com/C1ph3rX13/CVE-2023-22518"},{"source":"pocgithub","id":"bibo318/CVE-2023-22518","title":"bibo318/CVE-2023-22518","date":"2024-01-23","url":"https://github.com/bibo318/CVE-2023-22518"},{"source":"pocgithub","id":"Lilly-dox/Exploit-CVE-2023-22518","title":"Lilly-dox/Exploit-CVE-2023-22518","date":"2024-03-21","url":"https://github.com/Lilly-dox/Exploit-CVE-2023-22518"},{"source":"pocgithub","id":"d3ckkNo0b/analyze-Exploit-CVE-2023-22518-Confluence","title":"d3ckkNo0b/analyze-Exploit-CVE-2023-22518-Confluence","date":"2025-05-05","url":"https://github.com/d3ckkNo0b/analyze-Exploit-CVE-2023-22518-Confluence"},{"source":"nuclei","id":"CVE-2023-22518","title":"Atlassian Confluence Server - Improper Authorization","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-22518.yaml"}],"products":[{"vendor":"atlassian","product":"confluence data center"},{"vendor":"atlassian","product":"confluence data center and server"},{"vendor":"atlassian","product":"confluence server"},{"vendor":"atlassian","product":"confluence_data_center"},{"vendor":"atlassian","product":"confluence_server"}],"references":[{"url":"https://confluence.atlassian.com/pages/viewpage.action?pageId=1311473907","tags":["x_transferred","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"https://jira.atlassian.com/browse/CONFSERVER-93142","tags":["x_transferred","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.html","tags":["x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22518","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-22518"},{"url":"https://github.com/RootUp/PersonalStuff/blob/master/check_cve_2023_22518.py"},{"url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-22518.yaml"},{"url":"https://www.bleepingcomputer.com/news/security/atlassian-warns-of-exploit-for-confluence-data-wiping-bug-get-patching"},{"url":"https://www.rapid7.com/blog/post/2023/11/06/etr-rapid7-observed-exploitation-of-atlassian-confluence-cve-2023-22518"},{"url":"https://www.securityweek.com/exploitation-of-critical-confluence-vulnerability-begins"},{"url":"https://github.com/advisories/GHSA-8prx-84h6-4fr5"}],"sources":{"cve":[{"id":"CVE-2023-22518","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. \n\nAtlassian 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.","status":"published","published":"2023-10-31T14:30:00.418Z","modified":"2025-10-21T23:05:32.975Z","cvss":[{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:35:15.779187Z"}],"euvd":[{"id":"EUVD-2023-26658","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. \n\nAtlassian 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.","status":"published","published":"2023-10-31T14:30:00Z","modified":"2025-10-21T23:05:32Z","cvss":[{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2023-11-07","updated_at":"2026-11-02T20:31:27.312976Z"}],"ghsa":[{"id":"GHSA-8prx-84h6-4fr5","title":"All versions of Confluence Data Center and Server are affected by this unexploited vulnerability....","description":"All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. There is no impact to confidentiality as an attacker cannot exfiltrate any instance data.\n\nAtlassian 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.","status":"published","published":"2023-10-31T15:30:24Z","modified":"2025-10-22T00:32:54Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:04:07.112106Z"}],"kev":[{"id":"CVE-2023-22518","title":"Atlassian Confluence Data Center and Server Improper Authorization Vulnerability","description":"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.","cwes":["CWE-863"],"kev":{"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.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2023-22518","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. \n\nAtlassian 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.","status":"published","published":"2023-10-31T15:15:08.573Z","modified":"2026-06-17T05:35:37.49Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:08:41.047232Z"}]}}