{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T07:13:07.373","vulnerabilities":[{"cve":{"id":"CVE-2021-22886","sourceIdentifier":"support@hackerone.com","published":"2021-03-26T19:15:11.913","lastModified":"2024-11-21T05:50:50.503","vulnStatus":"Modified","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.&#xa0;Este fallo conlleva a una lectura de archivos arbitraria y una RCE en la aplicación de escritorio Rocket.Chat."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"support@hackerone.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionEndExcluding":"3.8.8","matchCriteriaId":"86A30DEE-F0BD-42BD-8BE7-EAFC4EB83A94"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9.0","versionEndExcluding":"3.9.7","matchCriteriaId":"A5B4CA06-527F-4600-A11A-ABFA54D754C8"},{"vulnerable":true,"criteria":"cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10.0","versionEndExcluding":"3.10.5","matchCriteriaId":"D9EFC543-2F10-4521-9814-ABBD237364EB"},{"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"}]}]}],"references":[{"url":"https://docs.rocket.chat/guides/security/security-updates","source":"support@hackerone.com","tags":["Vendor Advisory"]},{"url":"https://github.com/RocketChat/Rocket.Chat/pull/20430","source":"support@hackerone.com","tags":["Patch","Third Party Advisory"]},{"url":"https://hackerone.com/reports/1014459","source":"support@hackerone.com","tags":["Third Party Advisory"]},{"url":"https://docs.rocket.chat/guides/security/security-updates","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://github.com/RocketChat/Rocket.Chat/pull/20430","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://hackerone.com/reports/1014459","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}