{"api_version":"1","generated_at":"2026-09-05T10:04:44+00:00","cve":"CVE-2026-65644","urls":{"html":"https://cve.report/CVE-2026-65644","api":"https://cve.report/api/cve/CVE-2026-65644.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-65644","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-65644"},"summary":{"title":"CVE-2026-65644","description":"Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6, 8.3.8, 8.2.8, 8.1.8, and 7.10.15 has a REST API endpoint POST /api/v1/livechat/visitor that accepts an unauthenticated, unsanitized name field for Livechat visitors. This name is stored raw and later rendered via dangerouslySetInnerHTML in the Omnichannel Queue side panel (InquireSidePanelItem.tsx), injecting a real, clickable HTML link - pointing to any attacker-controlled domain, with arbitrary social-engineering text - into the DOM of any agent viewing the queue.","state":"PUBLISHED","assigner":"hackerone","published_at":"2026-08-21 04:18:13","updated_at":"2026-09-04 18:30:22"},"problem_types":["CWE-79","CWE-79 CWE-79 Cross-site Scripting (XSS) - 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8.4.6, 8.3.8, 8.2.8, 8.1.8, and 7.10.15 has a REST API endpoint POST /api/v1/livechat/visitor that accepts an unauthenticated, unsanitized name field for Livechat visitors. This name is stored raw and later rendered via dangerouslySetInnerHTML in the Omnichannel Queue side panel (InquireSidePanelItem.tsx), injecting a real, clickable HTML link - pointing to any attacker-controlled domain, with arbitrary social-engineering text - into the DOM of any agent viewing the queue."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Cross-site Scripting (XSS) - DOM","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-21T02:53:43.406Z","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","shortName":"hackerone"},"references":[{"url":"https://hackerone.com/reports/3872858"},{"url":"https://github.com/RocketChat/Rocket.Chat/pull/41595"}]}},"cveMetadata":{"assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","assignerShortName":"hackerone","cveId":"CVE-2026-65644","datePublished":"2026-08-21T02:53:43.406Z","dateReserved":"2026-07-22T15:00:06.103Z","dateUpdated":"2026-08-27T19:19:36.705Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-21 04:18:13","lastModifiedDate":"2026-09-04 18:30:22","problem_types":["CWE-79","CWE-79 CWE-79 Cross-site Scripting (XSS) - DOM"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-27T19:19:28.284092Z","id":"CVE-2026-65644","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionEndExcluding":"7.10.15","matchCriteriaId":"83AFD920-8EAC-445A-9EDE-39A405C7EFCF"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.1.0","versionEndExcluding":"8.1.8","matchCriteriaId":"F0047835-D014-4735-9D38-AD6E91E69DC2"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.2.0","versionEndExcluding":"8.2.8","matchCriteriaId":"7BF9BDAA-1A56-43C5-ACFC-4849A21CD601"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.3.0","versionEndExcluding":"8.3.8","matchCriteriaId":"36B7912B-900A-4B96-BAE2-9CA5834BB25A"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.4.0","versionEndExcluding":"8.4.6","matchCriteriaId":"5314C8E0-FBBB-4DB6-9729-D6A41DEE57AF"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.5.0","versionEndExcluding":"8.5.3","matchCriteriaId":"4E8FA572-5D43-4253-A81E-F0F4FC3F3189"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"8.6.0","versionEndExcluding":"8.6.2","matchCriteriaId":"773C4B37-A14E-4898-8501-3F89C796CFC1"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:8.7.0:*:*:*:*:*:*:*","matchCriteriaId":"89603D12-AAF4-4065-BDE9-45EB52E29EE0"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"65644","Ordinal":"1","Title":"CVE-2026-65644","CVE":"CVE-2026-65644","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"65644","Ordinal":"1","NoteData":"Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6, 8.3.8, 8.2.8, 8.1.8, and 7.10.15 has a REST API endpoint POST /api/v1/livechat/visitor that accepts an unauthenticated, unsanitized name field for Livechat visitors. This name is stored raw and later rendered via dangerouslySetInnerHTML in the Omnichannel Queue side panel (InquireSidePanelItem.tsx), injecting a real, clickable HTML link - pointing to any attacker-controlled domain, with arbitrary social-engineering text - into the DOM of any agent viewing the queue.","Type":"Description","Title":"CVE-2026-65644"}]}}}