{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35451","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-02T19:25:52.192Z","datePublished":"2026-04-21T16:22:30.378Z","dateUpdated":"2026-04-21T16:56:02.097Z"},"containers":{"cna":{"title":"Twenty: Stored XSS via BlockNote FileBlock","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/twentyhq/twenty/security/advisories/GHSA-7w89-7q26-gj7q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/twentyhq/twenty/security/advisories/GHSA-7w89-7q26-gj7q"},{"name":"https://github.com/twentyhq/twenty/commit/8da69e0f77ea820a6845a4c3c025b6af3861d523","tags":["x_refsource_MISC"],"url":"https://github.com/twentyhq/twenty/commit/8da69e0f77ea820a6845a4c3c025b6af3861d523"}],"affected":[{"vendor":"twentyhq","product":"twenty","versions":[{"version":"< 1.20.6","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-21T16:22:30.378Z"},"descriptions":[{"lang":"en","value":"Twenty is an open source CRM. Prior to 1.20.6, a Stored Cross-Site Scripting (XSS) vulnerability exists in the BlockNote editor component. Due to a lack of protocol validation in the FileBlock component and insufficient server-side inspection of block content, an attacker can inject a javascript: URI into the url property of a file block. This allows the execution of arbitrary JavaScript when a user clicks on the malicious file attachment. This vulnerability is fixed in 1.20.6."}],"source":{"advisory":"GHSA-7w89-7q26-gj7q","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/twentyhq/twenty/security/advisories/GHSA-7w89-7q26-gj7q","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T16:54:47.995335Z","id":"CVE-2026-35451","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-21T16:56:02.097Z"}}]}}