{"id":"CVE-2024-39836","state":"PUBLISHED","title":"Munged email address used for password resets and notifications","description":"Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to  ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails.","publishedAt":"2024-08-22T06:27:09.829Z","updatedAt":"2024-08-22T16:39:21.881Z","severity":{"score":4.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"Mattermost"},"assigner":"Mattermost","products":["Mattermost Mattermost"],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"9.9.0","status":"affected","lessThanOrEqual":"9.9.1","versionType":"semver"},{"version":"9.5.0","status":"affected","lessThanOrEqual":"9.5.7","versionType":"semver"},{"version":"9.10.0","status":"affected"},{"version":"9.8.0","status":"affected","lessThanOrEqual":"9.8.2","versionType":"semver"},{"version":"9.11.0","status":"unaffected"},{"version":"9.9.2","status":"unaffected"},{"version":"9.5.8","status":"unaffected"},{"version":"9.10.1","status":"unaffected"},{"version":"9.8.3","status":"unaffected"}]}],"references":["https://mattermost.com/security-updates"],"weaknesses":["CWE-693"],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/39xxx/CVE-2024-39836.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39836","state":"PUBLISHED","datePublished":"2024-08-22T06:27:09.829Z","dateUpdated":"2024-08-22T16:39:21.881Z","assignerShortName":"Mattermost","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateReserved":"2024-08-20T16:09:35.902Z"},"containers":{"cna":{"title":"Munged email address used for password resets and notifications","descriptions":[{"lang":"en","value":"Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to  ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails."}],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"9.9.0","status":"affected","lessThanOrEqual":"9.9.1","versionType":"semver"},{"version":"9.5.0","status":"affected","lessThanOrEqual":"9.5.7","versionType":"semver"},{"version":"9.10.0","status":"affected"},{"version":"9.8.0","status":"affected","lessThanOrEqual":"9.8.2","versionType":"semver"},{"version":"9.11.0","status":"unaffected"},{"version":"9.9.2","status":"unaffected"},{"version":"9.5.8","status":"unaffected"},{"version":"9.10.1","status":"unaffected"},{"version":"9.8.3","status":"unaffected"}]}],"references":[{"url":"https://mattermost.com/security-updates"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-693","description":"CWE-693: Protection Mechanism Failure","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateUpdated":"2024-08-22T06:27:09.829Z"},"credits":[{"lang":"en","type":"finder","value":"Juho Forsén"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Update Mattermost to versions 9.11.0, 9.9.2, 9.5.8, 9.10.1, 9.8.3 or higher.</p>"}],"value":"Update Mattermost to versions 9.11.0, 9.9.2, 9.5.8, 9.10.1, 9.8.3 or higher."}],"source":{"advisory":"MMSA-2024-00339","defect":["https://mattermost.atlassian.net/browse/MM-58244"],"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-22T16:39:11.770507Z","id":"CVE-2024-39836","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-08-22T16:39:21.881Z"}}]}}}