{"id":"CVE-2025-20086","state":"PUBLISHED","title":"Insufficient Input Validation on Post Props","description":"Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post.","publishedAt":"2025-01-15T16:49:51.066Z","updatedAt":"2025-02-12T20:31:20.302Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"Mattermost"},"assigner":"Mattermost","products":["Mattermost Mattermost"],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.2.0","status":"affected","versionType":"semver"},{"version":"9.11.0","status":"affected","lessThanOrEqual":"9.11.5","versionType":"semver"},{"version":"10.0.0","status":"affected","lessThanOrEqual":"10.0.3","versionType":"semver"},{"version":"10.1.0","status":"affected","lessThanOrEqual":"10.1.3","versionType":"semver"},{"version":"10.3.0","status":"unaffected"},{"version":"10.2.1","status":"unaffected"},{"version":"9.11.6","status":"unaffected"},{"version":"10.0.4","status":"unaffected"},{"version":"10.1.4","status":"unaffected"}]}],"references":["https://mattermost.com/security-updates"],"weaknesses":["CWE-1287"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/20xxx/CVE-2025-20086.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-20086","state":"PUBLISHED","datePublished":"2025-01-15T16:49:51.066Z","dateUpdated":"2025-02-12T20:31:20.302Z","assignerShortName":"Mattermost","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateReserved":"2025-01-14T00:19:35.055Z"},"containers":{"cna":{"title":"Insufficient Input Validation on Post Props","descriptions":[{"lang":"en","value":"Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post."}],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.2.0","status":"affected","versionType":"semver"},{"version":"9.11.0","status":"affected","lessThanOrEqual":"9.11.5","versionType":"semver"},{"version":"10.0.0","status":"affected","lessThanOrEqual":"10.0.3","versionType":"semver"},{"version":"10.1.0","status":"affected","lessThanOrEqual":"10.1.3","versionType":"semver"},{"version":"10.3.0","status":"unaffected"},{"version":"10.2.1","status":"unaffected"},{"version":"9.11.6","status":"unaffected"},{"version":"10.0.4","status":"unaffected"},{"version":"10.1.4","status":"unaffected"}]}],"references":[{"url":"https://mattermost.com/security-updates"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1287","description":"CWE-1287: Improper Validation of Specified Type of Input","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateUpdated":"2025-01-15T16:49:51.066Z"},"credits":[{"lang":"en","type":"finder","value":"c0rydoras (c0rydoras)"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Update Mattermost to versions 10.3.0, 2.23.0, 10.2.1, 9.11.6, 10.0.4, 10.1.4 or higher.</p>"}],"value":"Update Mattermost to versions 10.3.0, 2.23.0, 10.2.1, 9.11.6, 10.0.4, 10.1.4 or higher."}],"source":{"advisory":"MMSA-2025-00426","defect":["https://mattermost.atlassian.net/browse/MM-61376"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-20086","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-01-15T19:20:52.723585Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-02-12T20:31:20.302Z"}}]}}}