{"id":"CVE-2026-29056","state":"PUBLISHED","title":"Kanboard's privilege escalation via mass assignment in user invite registration allows any invited user to become admin","description":"Kanboard is project management software focused on Kanban methodology. Prior to 1.2.51, Kanboard's user invite registration endpoint (`UserInviteController::register()`) accepts all POST parameters and passes them to `UserModel::create()` without filtering out the `role` field. An attacker who receives an invite link can inject `role=app-admin` in the registration form to create an administrator account. Version 1.2.51 fixes the issue.","publishedAt":"2026-03-18T01:56:19.315Z","updatedAt":"2026-03-18T14:01:17.860Z","severity":{"score":7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:N/SA:N/E:P","source":"GitHub_M"},"assigner":"GitHub_M","products":["kanboard kanboard"],"affected":[{"vendor":"kanboard","product":"kanboard","versions":[{"version":"< 1.2.51","status":"affected"}]}],"references":["https://github.com/kanboard/kanboard/security/advisories/GHSA-2jvj-q44v-6p3x"],"weaknesses":["CWE-915"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/29xxx/CVE-2026-29056.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-29056","state":"PUBLISHED","datePublished":"2026-03-18T01:56:19.315Z","dateUpdated":"2026-03-18T14:01:17.860Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-03T17:50:11.244Z"},"containers":{"cna":{"title":"Kanboard's privilege escalation via mass assignment in user invite registration allows any invited user to become admin","descriptions":[{"lang":"en","value":"Kanboard is project management software focused on Kanban methodology. Prior to 1.2.51, Kanboard's user invite registration endpoint (`UserInviteController::register()`) accepts all POST parameters and passes them to `UserModel::create()` without filtering out the `role` field. An attacker who receives an invite link can inject `role=app-admin` in the registration form to create an administrator account. Version 1.2.51 fixes the issue."}],"affected":[{"vendor":"kanboard","product":"kanboard","versions":[{"version":"< 1.2.51","status":"affected"}]}],"references":[{"url":"https://github.com/kanboard/kanboard/security/advisories/GHSA-2jvj-q44v-6p3x","name":"https://github.com/kanboard/kanboard/security/advisories/GHSA-2jvj-q44v-6p3x","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:N/SA:N/E:P","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-915","lang":"en","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-18T01:56:19.315Z"},"source":{"advisory":"GHSA-2jvj-q44v-6p3x","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/kanboard/kanboard/security/advisories/GHSA-2jvj-q44v-6p3x","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-18T14:01:14.632601Z","id":"CVE-2026-29056","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-18T14:01:17.860Z"}}]}}}