{"id":"CVE-2021-37863","state":"PUBLISHED","title":"Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application ","description":"Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.","publishedAt":"2021-12-17T16:10:30.000Z","updatedAt":"2024-08-04T01:30:08.631Z","severity":{"score":3.5,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","source":"Mattermost"},"assigner":"Mattermost","products":["Mattermost Mattermost"],"affected":[{"vendor":"Mattermost","product":"Mattermost","versions":[{"version":"unspecified","status":"affected","lessThanOrEqual":"6.0","versionType":"custom"}]}],"references":["https://mattermost.com/security-updates/","https://hackerone.com/reports/1253732"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:48:47.122Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/37xxx/CVE-2021-37863.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-37863","state":"PUBLISHED","datePublished":"2021-12-17T16:10:30.000Z","dateUpdated":"2024-08-04T01:30:08.631Z","assignerShortName":"Mattermost","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateReserved":"2021-08-02T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post."}],"affected":[{"vendor":"Mattermost","product":"Mattermost","versions":[{"version":"unspecified","status":"affected","lessThanOrEqual":"6.0","versionType":"custom"}]}],"references":[{"url":"https://mattermost.com/security-updates/","tags":["x_refsource_MISC"]},{"url":"https://hackerone.com/reports/1253732","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","dateUpdated":"2021-12-17T16:10:30.000Z","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee"},"source":{"advisory":"MMSA-2021-0075","defect":["https://mattermost.atlassian.net/browse/MM-36892"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"responsibledisclosure@mattermost.com","ID":"CVE-2021-37863","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Mattermost","version":{"version_data":[{"version_affected":"<=","version_value":"6.0"}]}}]},"vendor_name":"Mattermost"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20 Improper Input Validation"}]}]},"references":{"reference_data":[{"name":"https://mattermost.com/security-updates/","refsource":"MISC","url":"https://mattermost.com/security-updates/"},{"name":"https://hackerone.com/reports/1253732","refsource":"MISC","url":"https://hackerone.com/reports/1253732"}]},"source":{"advisory":"MMSA-2021-0075","defect":["https://mattermost.atlassian.net/browse/MM-36892"],"discovery":"EXTERNAL"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://mattermost.com/security-updates/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://hackerone.com/reports/1253732","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T01:30:08.631Z"}}]}}}