{"id":"CVE-2025-55073","sourceIdentifier":"responsibledisclosure@mattermost.com","published":"2025-11-14T08:15:45.687","lastModified":"2026-10-19T13:10:00.110","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL."},{"lang":"es","value":"Las versiones de Mattermost 10.11.x menor o igual que 10.11.3, 10.5.x menor o igual que 10.5.11, 10.12.x menor o igual que 10.12.0 no validan la relación entre la publicación que se está actualizando y el flujo OAuth del plugin de MSTeams, lo que permite a un atacante editar publicaciones arbitrarias a través de una URL de redirección OAuth del plugin de MSTeams manipulada."}],"affected":[{"source":"responsibledisclosure@mattermost.com","affectedData":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.11.0","lessThanOrEqual":"10.11.3","versionType":"semver","status":"affected"},{"version":"10.5.0","lessThanOrEqual":"10.5.11","versionType":"semver","status":"affected"},{"version":"10.12.0","lessThanOrEqual":"10.12.0","versionType":"semver","status":"affected"},{"version":"11.0.0","status":"unaffected"},{"version":"10.11.4","status":"unaffected"},{"version":"10.5.12","status":"unaffected"},{"version":"10.12.1","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"responsibledisclosure@mattermost.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":2.5},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-11-14T15:46:46.741736Z","id":"CVE-2025-55073","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"responsibledisclosure@mattermost.com","type":"Secondary","description":[{"lang":"en","value":"CWE-306"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"10.5.0","versionEndExcluding":"10.5.12","matchCriteriaId":"CCE1652A-13F7-4934-9F90-28129BAEE240"},{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"10.11.0","versionEndExcluding":"10.11.4","matchCriteriaId":"2A1F41DC-D93D-48A7-8A3B-623C3344E979"},{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"10.12.0","versionEndExcluding":"10.12.1","matchCriteriaId":"E21DF5C5-280A-48C5-96C7-C78F0ECF32A3"}]}]}],"references":[{"url":"https://mattermost.com/security-updates","source":"responsibledisclosure@mattermost.com","tags":["Vendor Advisory"]}]}