CVE-2026-65644

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-65644", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-07-22T15:00:06.103Z", "datePublished": "2026-08-21T02:53:43.406Z", "dateUpdated": "2026-08-27T19:19:36.705Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "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."}], "affected": [{"defaultStatus": "unaffected", "vendor": "Rocket.Chat", "product": "Rocket.Chat", "versions": [{"version": "0", "status": "affected", "lessThan": "8.8.0", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.7.1", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.6.2", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.5.3", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.4.6", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.3.8", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.2.8", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "8.1.8", "versionType": "semver"}, {"version": "0", "status": "affected", "lessThan": "7.10.15", "versionType": "semver"}]}], "references": [{"url": "https://hackerone.com/reports/3872858"}, {"url": "https://github.com/RocketChat/Rocket.Chat/pull/41595"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-79", "description": "CWE-79 Cross-site Scripting (XSS) - DOM"}]}], "credits": [{"lang": "en", "value": "Hill N (hillng)", "type": "finder"}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-08-21T02:53:43.406Z"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-27T19:19:28.284092Z", "id": "CVE-2026-65644", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-08-27T19:19:36.705Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-65644", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-27T19:19:28.284092Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-27T19:19:07.633Z"}}], "cna": {"credits": [{"lang": "en", "type": "finder", "value": "Hill N (hillng)"}], "affected": [{"vendor": "Rocket.Chat", "product": "Rocket.Chat", "versions": [{"status": "affected", "version": "0", "lessThan": "8.8.0", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.7.1", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.6.2", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.5.3", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.4.6", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.3.8", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.2.8", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "8.1.8", "versionType": "semver"}, {"status": "affected", "version": "0", "lessThan": "7.10.15", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://hackerone.com/reports/3872858"}, {"url": "https://github.com/RocketChat/Rocket.Chat/pull/41595"}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Cross-site Scripting (XSS) - DOM"}]}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-08-21T02:53:43.406Z"}}}, "cveMetadata": {"cveId": "CVE-2026-65644", "state": "PUBLISHED", "dateUpdated": "2026-08-27T19:19:36.705Z", "dateReserved": "2026-07-22T15:00:06.103Z", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "datePublished": "2026-08-21T02:53:43.406Z", "assignerShortName": "hackerone"}, "dataVersion": "5.2"}

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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."}, {"lang": "es", "value": "Rocket.Chat en versiones anteriores a la 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6, 8.3.8, 8.2.8, 8.1.8 y 7.10.15 tiene un endpoint de API REST POST /api/v1/livechat/visitor que acepta un campo de nombre no autenticado y no saneado para los visitantes de Livechat. Este nombre se almacena sin procesar y luego se renderiza a trav\u00e9s de dangerouslySetInnerHTML en el panel lateral de la Cola Omnicanal (InquireSidePanelItem.tsx), inyectando un enlace HTML real y clicable - que apunta a cualquier dominio controlado por el atacante, con texto arbitrario de ingenier\u00eda social - en el DOM de cualquier agente que vea la cola."}], "id": "CVE-2026-65644", "lastModified": "2026-10-26T10:10:00.140", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-65644", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-27T19:19:28.284092Z", "version": "2.0.3"}}]}, "published": "2026-08-21T04:18:13.780", "references": [{"source": "support@hackerone.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/RocketChat/Rocket.Chat/pull/41595"}, {"source": "support@hackerone.com", "tags": ["Third Party Advisory", "Issue Tracking"], "url": "https://hackerone.com/reports/3872858"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "support@hackerone.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.8.0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.7.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.6.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.5.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.4.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.3.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.2.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,8.1.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,7.10.15)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Rocket.Chat", "source": "cna", "vendor": "Rocket.Chat"}, "product": "rocket.chat", "vendor": "rocket.chat"}], "created": "2026-08-21T04:30:09.458037+00:00", "updated": "2026-08-28T19:30:16.884171+00:00", "vendors": ["rocket.chat", "rocket.chat$PRODUCT$rocket.chat"]}