{"containers": {"cna": {"affected": [{"product": "Rocket.Chat", "vendor": "n/a", "versions": [{"status": "affected", "version": "Fixed in 3.11, 3.10.5, 3.9.7, 3.8.8"}]}], "descriptions": [{"lang": "en", "value": "Rocket.Chat before 3.11, 3.10.5, 3.9.7, 3.8.8 is vulnerable to persistent cross-site scripting (XSS) using nested markdown tags allowing a remote attacker to inject arbitrary JavaScript in a message. This flaw leads to arbitrary file read and RCE on Rocket.Chat desktop app."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "Cross-site Scripting (XSS) - Stored (CWE-79)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-03-26T18:15:54.000Z", "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://docs.rocket.chat/guides/security/security-updates"}, {"tags": ["x_refsource_MISC"], "url": "https://hackerone.com/reports/1014459"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/RocketChat/Rocket.Chat/pull/20430"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "support@hackerone.com", "ID": "CVE-2021-22886", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Rocket.Chat", "version": {"version_data": [{"version_value": "Fixed in 3.11, 3.10.5, 3.9.7, 3.8.8"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Rocket.Chat before 3.11, 3.10.5, 3.9.7, 3.8.8 is vulnerable to persistent cross-site scripting (XSS) using nested markdown tags allowing a remote attacker to inject arbitrary JavaScript in a message. This flaw leads to arbitrary file read and RCE on Rocket.Chat desktop app."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Cross-site Scripting (XSS) - Stored (CWE-79)"}]}]}, "references": {"reference_data": [{"name": "https://docs.rocket.chat/guides/security/security-updates", "refsource": "MISC", "url": "https://docs.rocket.chat/guides/security/security-updates"}, {"name": "https://hackerone.com/reports/1014459", "refsource": "MISC", "url": "https://hackerone.com/reports/1014459"}, {"name": "https://github.com/RocketChat/Rocket.Chat/pull/20430", "refsource": "MISC", "url": "https://github.com/RocketChat/Rocket.Chat/pull/20430"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:58:24.679Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://docs.rocket.chat/guides/security/security-updates"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://hackerone.com/reports/1014459"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/RocketChat/Rocket.Chat/pull/20430"}]}]}, "cveMetadata": {"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "assignerShortName": "hackerone", "cveId": "CVE-2021-22886", "datePublished": "2021-03-26T18:15:54.000Z", "dateReserved": "2021-01-06T00:00:00.000Z", "dateUpdated": "2024-08-03T18:58:24.679Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "Rocket.Chat", "vendor": "n/a", "versions": [{"status": "affected", "version": "Fixed in 3.11, 3.10.5, 3.9.7, 3.8.8"}]}], "source": "support@hackerone.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*", "matchCriteriaId": "86A30DEE-F0BD-42BD-8BE7-EAFC4EB83A94", "versionEndExcluding": "3.8.8", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*", "matchCriteriaId": "A5B4CA06-527F-4600-A11A-ABFA54D754C8", "versionEndExcluding": "3.9.7", "versionStartIncluding": "3.9.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*", "matchCriteriaId": "D9EFC543-2F10-4521-9814-ABBD237364EB", "versionEndExcluding": "3.10.5", "versionStartIncluding": "3.10.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc0:*:*:*:*:*:*", "matchCriteriaId": "894B212B-12E9-49D0-9DCC-A8DA2BE98FCD", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "B996994C-FEC5-4524-94F4-E8F7CD666BC7", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "506868F8-3FEE-478E-BAA2-889C53A79977", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "49553F24-2CC0-48E6-BA55-4CE0283C1E6A", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc4:*:*:*:*:*:*", "matchCriteriaId": "C4B247DC-ECB0-4859-8F6D-6CAA2C01B57E", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc5:*:*:*:*:*:*", "matchCriteriaId": "B3962CCC-17F4-4F4B-AE82-A53DB5ED19A5", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc6:*:*:*:*:*:*", "matchCriteriaId": "AA4771F7-A143-44C9-8FED-B9111C22D058", "vulnerable": true}, {"criteria": "cpe:2.3:a:rocket.chat:rocket.chat:3.11.0:rc7:*:*:*:*:*:*", "matchCriteriaId": "6CA36B0C-3A4D-44EA-BAB8-A9B2D7F672D2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Rocket.Chat before 3.11, 3.10.5, 3.9.7, 3.8.8 is vulnerable to persistent cross-site scripting (XSS) using nested markdown tags allowing a remote attacker to inject arbitrary JavaScript in a message. This flaw leads to arbitrary file read and RCE on Rocket.Chat desktop app."}, {"lang": "es", "value": "Rocket.Chat versiones anteriores a 3.11, 3.10.5, 3.9.7, 3.8.8, es vulnerable a ataques de tipo cross-site scripting (XSS) persistente que usan etiquetas markdown anidadas que permiten a un atacante remoto inyectar JavaScript arbitrario en un mensaje. Este fallo conlleva a una lectura de archivos arbitraria y una RCE en la aplicaci\u00f3n de escritorio Rocket.Chat."}], "id": "CVE-2021-22886", "lastModified": "2026-06-17T03:37:57.080", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-26T19:15:11.913", "references": [{"source": "support@hackerone.com", "tags": ["Vendor Advisory"], "url": "https://docs.rocket.chat/guides/security/security-updates"}, {"source": "support@hackerone.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/RocketChat/Rocket.Chat/pull/20430"}, {"source": "support@hackerone.com", "tags": ["Third Party Advisory"], "url": "https://hackerone.com/reports/1014459"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://docs.rocket.chat/guides/security/security-updates"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/RocketChat/Rocket.Chat/pull/20430"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://hackerone.com/reports/1014459"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "support@hackerone.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}