{"id":"CVE-2026-81814","state":"PUBLISHED","title":"Flowintel Stored XSS in Calendar via Malicious Case Title","description":"Affected versions of Flowintel render calendar event titles using innerHTML. Because those titles are derived from case titles, a user able to create or modify a case title could store HTML or script-capable content that is later interpreted by the browser when another user views the calendar.\n\n\nThe fix changes:\n\n\ntitleEl.innerHTML = arg.event.title\n\n\nto:\n\n\ntitleEl.textContent = arg.event.title || ''\n\nand similarly stops using innerHTML for the static download icon.\n\nVersion impacted =>3.3.0","publishedAt":"2026-08-27T12:48:39.314Z","updatedAt":"2026-08-27T15:51:29.597Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","source":"CIRCL"},"assigner":"CIRCL","products":["flowintel flowintel"],"affected":[{"vendor":"flowintel","product":"flowintel","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.3.0","versionType":"semver"}],"repo":"https://github.com/flowintel/flowintel"}],"references":["https://github.com/flowintel/flowintel/commit/f224438eb495e6b0d4e465eb7f40ab771bbfdb76.patch"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/81xxx/CVE-2026-81814.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-81814","state":"PUBLISHED","datePublished":"2026-08-27T12:48:39.314Z","dateUpdated":"2026-08-27T15:51:29.597Z","assignerShortName":"CIRCL","assignerOrgId":"5a6e4751-2f3f-4070-9419-94fb35b644e8","dateReserved":"2026-08-27T12:48:37.284Z"},"containers":{"cna":{"title":"Flowintel Stored XSS in Calendar via Malicious Case Title","descriptions":[{"lang":"en","value":"Affected versions of Flowintel render calendar event titles using innerHTML. Because those titles are derived from case titles, a user able to create or modify a case title could store HTML or script-capable content that is later interpreted by the browser when another user views the calendar.\n\n\nThe fix changes:\n\n\ntitleEl.innerHTML = arg.event.title\n\n\nto:\n\n\ntitleEl.textContent = arg.event.title || ''\n\nand similarly stops using innerHTML for the static download icon.\n\nVersion impacted =>3.3.0"}],"affected":[{"vendor":"flowintel","product":"flowintel","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.3.0","versionType":"semver"}],"repo":"https://github.com/flowintel/flowintel"}],"references":[{"url":"https://github.com/flowintel/flowintel/commit/f224438eb495e6b0d4e465eb7f40ab771bbfdb76.patch","tags":["patch"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CIRCL","orgId":"5a6e4751-2f3f-4070-9419-94fb35b644e8","dateUpdated":"2026-08-27T12:48:39.314Z"},"credits":[{"lang":"en","type":"finder","value":"Jeroen Pinoy"},{"lang":"en","type":"remediation developer","value":"David Cruciani"}],"impacts":[{"capecId":"CAPEC-63","descriptions":[{"lang":"en","value":"CAPEC-63 Cross-Site Scripting (XSS)"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T15:51:22.050865Z","id":"CVE-2026-81814","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T15:51:29.597Z"}}]}}}