{"schema":"threatline.record/2","record":{"id":"CVE-2023-42793","aliases":[],"summary":"JetBrains TeamCity Authentication Bypass Vulnerability","details":"JetBrains TeamCity contains an authentication bypass vulnerability that allows for remote code execution on TeamCity Server.","categories":["Applications & CMS"],"product":"TeamCity","vendor":"JetBrains","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-42793","source_modified_at":"2025-10-21T23:05:37.592Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"TeamCity","vendor":"JetBrains","versions":[{"version":"0","status":"affected","lessThan":"2023.05.4","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-42793","source_modified_at":"2025-10-21T23:05:37.592Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"TeamCity","ecosystem":null},"version":"2023.05.4","basis":"first unaffected version stated in the CVE record"}],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"date_added":"2023-10-04","due_date":"2023-10-25","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Known"},"epss":{"probability":0.99987,"percentile":0.99984,"score_date":"2026-10-23"},"published_at":"2023-09-19T16:57:29.245Z","modified_at":"2025-10-21T23:05:37.592Z","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-2023-42793","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:05:37.592Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/jetbrains_teamcity_rce_cve_2023_42793.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2023-09-19"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/51884","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2024-03-14"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-42793.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-2023-42793","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Exploit-DB","Nuclei","EPSS"],"references":[{"url":"https://blog.jetbrains.com/teamcity/2023/09/critical-security-issue-affecting-teamcity-on-premises-update-to-2023-05-4-now/","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-42793","source":"CISA KEV"},{"source":"CVE List","url":"https://www.jetbrains.com/privacy-security/issues-fixed/","tags":["x_transferred"]},{"source":"CVE List","url":"https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/","tags":["x_transferred"]},{"source":"CVE List","url":"https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.sonarsource.com/blog/teamcity-vulnerability/"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42793","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":"total","assessed_at":"2023-12-13T18:39:27.643246Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"JetBrains TeamCity Unauthenticated Remote Code Execution","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/jetbrains_teamcity_rce_cve_2023_42793.rb","date":"2023-09-19","added":"2026-06-06","check":true},{"source":"Exploit-DB","kind":"Remote exploit","name":"JetBrains TeamCity 2023.05.3 - 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