{"id":"CVE-2026-123309","title":"In JetBrains IntelliJ IDEA before 2026.3, \n2026.2.4 stored XSS was possible on the built-in web server via Markdown preview","summary":"In JetBrains IntelliJ IDEA before 2026.3, \n2026.2.4 stored XSS was possible on the built-in web server via Markdown preview","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"JetBrains","product":"IntelliJ IDEA","affected":["intellij_idea < 2026.3, \n2026.2.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T14:31:30.845684Z"},"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T14:40:18.394Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123309","references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T10:49:35.358Z","slug":"CVE-2026-123309","body":"## Overview\n\nIn JetBrains IntelliJ IDEA before 2026.3, \n2026.2.4 stored XSS was possible on the built-in web server via Markdown preview\n\n## Affected\n\n- `intellij_idea < 2026.3, \n2026.2.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}