{"id":"CVE-2022-26138","published":"2022-07-20T18:15:08Z","modified":"2026-06-17T04:34:46Z","title":"Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability","vendor":"Atlassian","product":"Confluence","tier":"core","eol":null,"description":{"text":"The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group with the username disabledsystemuser and a hardcoded password. A remote, unauthenticated attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group. This user account is created when installing versions 2.7.34, 2.7.35, and 3.0.2 of the app.","provenance":"source","from":"NVD"},"summary":{"text":"The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account, disabledsystemuser, in the confluence-users group with a hardcoded password. A remote, unauthenticated attacker who knows that hardcoded password can log in to Confluence and access all content available to the confluence-users group, with no user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:23Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.98241,"percentile":0.99916,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2022-07-29","dueDate":"2022-08-19","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://confluence.atlassian.com/doc/questions-for-confluence-security-advisory-2022-07-20-1142446709.html;  https://nvd.nist.gov/vuln/detail/CVE-2022-26138","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-07-29","exploitedFirstSeen":"2022-07-29","ransomware":true,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-07-29"},{"url":"https://go.recordedfuture.com/hubfs/reports/ta-2023-0302.pdf","date":"2023-03-02"},{"url":"https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2023/11/09055246/Modern-Asian-APT-groups-TTPs_report_eng.pdf","date":"2023-11-09"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-13&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-13"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-14&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-15&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-16&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-16"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-18&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-22&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-29&host_type=src&vulnerability=cve-2022-26138","date":"2023-11-29"}],"evidenceTotal":776,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-798","name":"Use of Hard-coded Credentials"}],"references":[{"url":"https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.html","tags":["Vendor Advisory"]},{"url":"https://jira.atlassian.com/browse/CONFSERVER-79483","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.html","tags":["Vendor Advisory"]},{"url":"https://jira.atlassian.com/browse/CONFSERVER-79483","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26138","tags":["US Government Resource"]}],"techniques":[{"id":"T1552.001","name":"Credentials In Files","tactics":["credential-access"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Hard-coded Credentials","mappingType":"exploitation_technique","evidence":[],"comment":"CVE-2022-26138 is a hard-coded credentials vulnerability in the \"Questions for Confluence\" app.","confidence":"high"}],"reports":[{"id":"SRC-cb049733b1fc717427aa","title":"Russian Military Cyber Actors Target U.S. and Global Critical Infrastructure","publisher":"cisa.gov","url":"https://www.cisa.gov/sites/default/files/2024-09/aa24-249a-russian-military-cyber-actors-target-us-and-global-critical-infrastructure.pdf","date":null,"mentions":[{"quote":" CVE-2022-26138 (Atlassian Confluence Server and Data Center)","start":10405,"end":10467},{"quote":"CVE-2021-33044, CVE-2021-33045, CVE-2022-26134, and CVE-2022-\r\n26138.","start":25317,"end":25386},{"quote":"ew and Advisories\r\n MITRE: Group G1003 - Ember Bear\r\n MITRE: Impacket\r\n NIST NVD: CVE-2020-1472\r\n NIST NVD: CVE-2021-26084\r\n NIST NVD: CVE-2021-3156\r\n NIST NVD: CVE-2021-4034\r\n NIST NVD: CVE-2022-27666\r\n NIST NVD: CVE-2021-33044\r\n NIST NVD: CVE-2021-33045\r\n NIST NVD: CVE-2022-26134\r\n NIST NVD: CVE-2022-26138","start":36781,"end":37101}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-30705","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-30705","exploited":true,"exploitedSince":"2022-07-29","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":3,"skipped":1,"earliest":"2022-07-21","earliestUrl":"https://github.com/alcaparra/CVE-2022-26138","repos":[{"name":"alcaparra/CVE-2022-26138","url":"https://github.com/alcaparra/CVE-2022-26138","stars":31,"created":"2022-07-21"},{"name":"z92g/CVE-2022-26138","url":"https://github.com/z92g/CVE-2022-26138","stars":15,"created":"2022-07-30"},{"name":"Vulnmachines/Confluence-Question-CVE-2022-26138-","url":"https://github.com/Vulnmachines/Confluence-Question-CVE-2022-26138-","stars":3,"created":"2022-07-28"}]},"nuclei":[{"id":"CVE-2022-26138","name":"Atlassian Questions For Confluence - Hardcoded Credentials","severity":"critical","path":"http/cves/2022/CVE-2022-26138.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-26138.yaml"}],"first":{"date":"2022-07-21","source":"PoC-in-GitHub","url":"https://github.com/alcaparra/CVE-2022-26138"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1552.001"],"provenance":"source"}],"timeline":[{"date":"2022-07-20","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26138","provenance":"source"},{"date":"2022-07-21","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/alcaparra/CVE-2022-26138","provenance":"source"},{"date":"2022-07-29","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2022-07-29","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-07-29","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-30705","provenance":"source"}],"speed":{"daysToPublicExploit":1,"firstExploitFrom":"PoC-in-GitHub","daysToKev":9},"priority":{"score":83.7,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1555 days ago"},{"name":"Known ransomware use","points":10.0,"detail":"CISA KEV and VulnCheck KEV: Known"},{"name":"EPSS percentile","points":19.98,"detail":"percentile 0.9992"},{"name":"Named in threat reports","points":3.87,"detail":"1 report"},{"name":"Public exploit code","points":5.0,"detail":"3 PoC-in-GitHub repos; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}