{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100263","assignerOrgId":"547ada31-17d8-4964-bc5f-1b8238ba8014","state":"PUBLISHED","assignerShortName":"JetBrains","dateReserved":"2026-09-25T17:02:05.789Z","datePublished":"2026-09-30T15:17:49.717Z","dateUpdated":"2026-09-30T15:48:39.648Z"},"containers":{"cna":{"providerMetadata":{"orgId":"547ada31-17d8-4964-bc5f-1b8238ba8014","shortName":"JetBrains","dateUpdated":"2026-09-30T15:17:49.717Z"},"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-79","cweId":"CWE-79"}]}],"affected":[{"vendor":"JetBrains","product":"YouTrack","versions":[{"version":"0","status":"affected","lessThan":"2026.2.18991","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"In JetBrains YouTrack before 2026.2.18991 stored HTML injection via the User-Agent header was possible"}],"references":[{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N"}}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-100263","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-30T15:35:06.223894Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-30T15:48:39.648Z"}}]}}