{"id":"CVE-2026-100263","revision":"8bb979bb3df3480a9fb3507aebff96f2","records":[{"revision":"8bb979bb3df3480a9fb3507aebff96f2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100263","aliases":[],"title":"In JetBrains YouTrack before 2026.2.18991 stored HTML injection via the User-Agent header was possible","description":"In JetBrains YouTrack before 2026.2.18991 stored HTML injection via the User-Agent header was possible","state":0,"publishedAt":"2026-09-30T15:17:49.717+00:00","modifiedAt":"2026-09-30T15:48:39.648+00:00","affected":[{"ecosystem":"Vendor product","name":"YouTrack","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"JetBrains\",\n                    \"product\": \"YouTrack\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThan\": \"2026.2.18991\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://www.jetbrains.com/privacy-security/issues-fixed/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100263","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100263","identifiers":["CVE-2026-100263"]},"retained":false,"historicalAffected":[]}],"coverage":[]}