{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-15T06:13:39.502","vulnerabilities":[{"cve":{"id":"CVE-2021-3866","sourceIdentifier":"security@huntr.dev","published":"2022-01-20T11:15:07.927","lastModified":"2024-11-21T06:22:41.337","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6."},{"lang":"es","value":"Cross-site Scripting (XSS) - Almacenado en el repositorio de GitHub zulip/zulip más de e incluyendo 44f935695d452cc3fb16845a0c6af710438b153d y antes de 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":2.7}],"cvssMetricV30":[{"source":"security@huntr.dev","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L","baseScore":6.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":1.0,"impactScore":5.3}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:S/C:N/I:P/A:N","baseScore":3.5,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":6.8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"security@huntr.dev","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*","versionEndIncluding":"4.8","matchCriteriaId":"C448E394-82E2-49E3-87E3-B80CF406D2FF"}]}]}],"references":[{"url":"https://blog.zulip.com/2022/01/19/cve-2021-3866/","source":"security@huntr.dev","tags":["Vendor Advisory"]},{"url":"https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6","source":"security@huntr.dev","tags":["Patch","Third Party Advisory"]},{"url":"https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2","source":"security@huntr.dev","tags":["Exploit","Third Party Advisory"]},{"url":"https://blog.zulip.com/2022/01/19/cve-2021-3866/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]}]}}]}