{"id":"CVE-2021-37862","state":"PUBLISHED","title":"Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled ema","description":"Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token.","publishedAt":"2021-12-17T16:10:29.000Z","updatedAt":"2024-08-04T01:30:09.135Z","severity":{"score":3.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","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/1357013"],"weaknesses":["CWE-754"],"ingestedAt":"2026-10-29T19:48:47.122Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/37xxx/CVE-2021-37862.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-37862","state":"PUBLISHED","datePublished":"2021-12-17T16:10:29.000Z","dateUpdated":"2024-08-04T01:30:09.135Z","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 the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token."}],"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/1357013","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-754","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","dateUpdated":"2021-12-17T16:10:29.000Z","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee"},"source":{"advisory":"MMSA-2021-0074","defect":["https://mattermost.atlassian.net/browse/MM-39205"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"responsibledisclosure@mattermost.com","ID":"CVE-2021-37862","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 the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-754 Improper Check for Unusual or Exceptional Conditions"}]}]},"references":{"reference_data":[{"name":"https://mattermost.com/security-updates/","refsource":"MISC","url":"https://mattermost.com/security-updates/"},{"name":"https://hackerone.com/reports/1357013","refsource":"MISC","url":"https://hackerone.com/reports/1357013"}]},"source":{"advisory":"MMSA-2021-0074","defect":["https://mattermost.atlassian.net/browse/MM-39205"],"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/1357013","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T01:30:09.135Z"}}]}}}