{"id":"CVE-2023-45612","aliases":["EUVD-2023-49904","GHSA-q42m-mp58-hxv5"],"status":"published","title":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was...","description":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00711,"percentile":0.54001,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-611"],"published":"2023-10-09T10:20:53Z","modified":"2026-10-28T02:30:37Z","exploits":[{"source":"pocgithub","id":"aecelen/ktor-xxe-poc","title":"aecelen/ktor-xxe-poc","date":"2025-10-15","url":"https://github.com/aecelen/ktor-xxe-poc"},{"source":"pocgithub","id":"clemfavre/cve-2023-45612_exploit","title":"clemfavre/cve-2023-45612_exploit","date":"2025-10-22","url":"https://github.com/clemfavre/cve-2023-45612_exploit"},{"source":"pocgithub","id":"infernosalex/CVE-2023-45612-PoC","title":"infernosalex/CVE-2023-45612-PoC","date":"2025-10-03","url":"https://github.com/infernosalex/CVE-2023-45612-PoC"},{"source":"pocgithub","id":"ksaweryr/CVE-2023-45612-PoC","title":"ksaweryr/CVE-2023-45612-PoC","date":"2025-11-07","url":"https://github.com/ksaweryr/CVE-2023-45612-PoC"},{"source":"pocgithub","id":"razvanclaudiu/ktor-xxe-poc","title":"razvanclaudiu/ktor-xxe-poc","date":"2025-10-23","url":"https://github.com/razvanclaudiu/ktor-xxe-poc"},{"source":"pocgithub","id":"seraphimi/ktor-xxe","title":"seraphimi/ktor-xxe","date":"2025-11-04","url":"https://github.com/seraphimi/ktor-xxe"},{"source":"pocgithub","id":"stefan-500/ktor-cve-2023-45612-poc","title":"stefan-500/ktor-cve-2023-45612-poc","date":"2025-11-07","url":"https://github.com/stefan-500/ktor-cve-2023-45612-poc"}],"products":[{"vendor":"jetbrains","product":"ktor"}],"references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/","tags":["x_transferred","Patch","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45612","tags":["advisory"]},{"url":"https://www.jetbrains.com/privacy-security/issues-fixed"},{"url":"https://github.com/advisories/GHSA-q42m-mp58-hxv5"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45612.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-45612","description":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE","status":"published","published":"2023-10-09T10:20:53.533Z","modified":"2024-09-19T13:59:24.883Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:35:22.640346Z"}],"euvd":[{"id":"EUVD-2023-49904","description":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE","status":"published","published":"2023-10-09T10:20:53Z","modified":"2024-09-19T13:59:24Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T00:28:19.06347Z"}],"ghsa":[{"id":"GHSA-q42m-mp58-hxv5","title":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was...","description":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE","status":"published","published":"2023-10-09T12:30:20Z","modified":"2024-04-04T08:26:03Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:56:58.612577Z"}],"nvd":[{"id":"CVE-2023-45612","description":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE","status":"published","published":"2023-10-09T11:15:11.02Z","modified":"2026-06-17T06:28:55.26Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"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"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:08:36.656095Z"}],"osv":[{"id":"CVE-2023-45612","description":"In JetBrains Ktor before 2.3.5 default configuration of ContentNegotiation with XML format was vulnerable to XXE","status":"published","published":"2023-10-09T10:20:53.533Z","modified":"2026-10-28T02:30:37.598678069Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T15:44:34.287121Z"}]}}