{"id":"CVE-2025-12756","sourceIdentifier":"responsibledisclosure@mattermost.com","published":"2025-12-01T20:15:49.147","lastModified":"2026-10-19T13:10:00.110","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate user permissions when deleting comments in Boards, which allows an authenticated user with the editor role to delete comments created by other users."},{"lang":"es","value":"Las versiones de Mattermost 11.0.x anteriores o iguales a la 11.0.2, 10.12.x anteriores o iguales a la 10.12.1, 10.11.x anteriores o iguales a la 10.11.4 y 10.5.x anteriores o iguales a la 10.5.12 no validan los permisos de usuario al eliminar comentarios en Boards, lo que permite a un usuario autenticado con el rol de editor eliminar comentarios creados por otros usuarios."}],"affected":[{"source":"responsibledisclosure@mattermost.com","affectedData":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"11.0.0","lessThanOrEqual":"11.0.2","versionType":"semver","status":"affected"},{"version":"10.12.0","lessThanOrEqual":"10.12.1","versionType":"semver","status":"affected"},{"version":"10.11.0","lessThanOrEqual":"10.11.4","versionType":"semver","status":"affected"},{"version":"10.5.0","lessThanOrEqual":"10.5.12","versionType":"semver","status":"affected"},{"version":"11.1.0","status":"unaffected"},{"version":"11.0.3","status":"unaffected"},{"version":"10.12.2","status":"unaffected"},{"version":"10.11.5","status":"unaffected"},{"version":"10.5.13","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:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-12-01T20:01:59.250891Z","id":"CVE-2025-12756","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-863"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"10.5.0","versionEndExcluding":"10.5.13","matchCriteriaId":"91D99F7F-B4EE-447C-9B77-82DD64B1D83A"},{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"10.11.0","versionEndExcluding":"10.11.5","matchCriteriaId":"A8368192-621C-4043-827E-DB4F6946AD92"},{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"10.12.0","versionEndExcluding":"10.12.2","matchCriteriaId":"ED48D731-6490-4DD5-94D4-EE4555BB93ED"},{"vulnerable":true,"criteria":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","versionStartIncluding":"11.0.0","versionEndExcluding":"11.0.3","matchCriteriaId":"3A288B87-76F2-415B-8462-3D185EB7A9B3"}]}]}],"references":[{"url":"https://mattermost.com/security-updates","source":"responsibledisclosure@mattermost.com","tags":["Vendor Advisory"]}]}