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vuln-cve/data/2026/42xxx/CVE-2026-42562.json
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{
"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": "2026-05-11T14:50:20.630Z"
},
"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"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-11T14:50:09.302375Z",
"id": "CVE-2026-42562",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-11T14:50:20.630Z"
}
}
]
}
}