{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42562", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-28T16:56:50.192Z", "datePublished": "2026-05-09T19:09:48.862Z", "dateUpdated": "2026-05-09T19:09:48.862Z"}, "containers": {"cna": {"title": "Plainpad: Privilege Escalation via Writable Admin Field in Profile Update (Access Control)", "problemTypes": [{"descriptions": [{"cweId": "CWE-269", "lang": "en", "description": "CWE-269: Improper Privilege Management", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6"}, {"name": "https://github.com/alextselegidis/plainpad/issues/138", "tags": ["x_refsource_MISC"], "url": "https://github.com/alextselegidis/plainpad/issues/138"}, {"name": "https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc", "tags": ["x_refsource_MISC"], "url": "https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc"}, {"name": "https://github.com/alextselegidis/plainpad/releases/tag/1.1.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/alextselegidis/plainpad/releases/tag/1.1.1"}], "affected": [{"vendor": "alextselegidis", "product": "plainpad", "versions": [{"version": "< 1.1.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-09T19:09:48.862Z"}, "descriptions": [{"lang": "en", "value": "Plainpad is a self hosted note taking app. Prior to version 1.1.1, Plainpad allows a low-privilege authenticated user to self-escalate to administrator by submitting admin=true in PUT /api.php/v1/users/{id}. The endpoint directly persists the admin attribute from user input, and the escalated account can immediately access admin-only routes. This issue has been patched in version 1.1.1."}], "source": {"advisory": "GHSA-pvfv-wvpm-q6f6", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Plainpad is a self hosted note taking app. Prior to version 1.1.1, Plainpad allows a low-privilege authenticated user to self-escalate to administrator by submitting admin=true in PUT /api.php/v1/users/{id}. The endpoint directly persists the admin attribute from user input, and the escalated account can immediately access admin-only routes. This issue has been patched in version 1.1.1."}], "id": "CVE-2026-42562", "lastModified": "2026-05-09T20:16:28.933", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-09T20:16:28.933", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc"}, {"source": "security-advisories@github.com", "url": "https://github.com/alextselegidis/plainpad/issues/138"}, {"source": "security-advisories@github.com", "url": "https://github.com/alextselegidis/plainpad/releases/tag/1.1.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-05-09T20:30:41.066274+00:00", "updated": "2026-05-09T20:30:41.066285+00:00", "vendors": []}