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vuln-cve/data/2026/55xxx/CVE-2026-55561.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-55561",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-16T23:11:20.213Z",
"datePublished": "2026-10-28T22:33:47.140Z",
"dateUpdated": "2026-11-03T00:13:51.395Z"
},
"containers": {
"cna": {
"title": "InvoicePlane: Guest user IDOR in quote approval and rejection",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"lang": "en",
"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-6xj3-274m-4mvg",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-6xj3-274m-4mvg"
},
{
"name": "https://github.com/InvoicePlane/InvoicePlane/pull/1413",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/pull/1413"
},
{
"name": "https://github.com/InvoicePlane/InvoicePlane/pull/1471",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/pull/1471"
},
{
"name": "https://github.com/InvoicePlane/InvoicePlane/commit/424dc44eb54030b93176bb08cba07ba12d7ae451",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/commit/424dc44eb54030b93176bb08cba07ba12d7ae451"
},
{
"name": "https://github.com/InvoicePlane/InvoicePlane/commit/fca7792a24de0a749d881cbbe4af6f58e9545d20",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/commit/fca7792a24de0a749d881cbbe4af6f58e9545d20"
},
{
"name": "https://github.com/InvoicePlane/InvoicePlane/releases/tag/v1.7.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/releases/tag/v1.7.2"
},
{
"name": "https://github.com/InvoicePlane/InvoicePlane/releases/tag/v1.7.2-beta-1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/InvoicePlane/InvoicePlane/releases/tag/v1.7.2-beta-1"
}
],
"affected": [
{
"vendor": "InvoicePlane",
"product": "InvoicePlane",
"versions": [
{
"version": "< 1.7.2-beta-1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-10-28T22:33:47.140Z"
},
"descriptions": [
{
"lang": "en",
"value": "InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2-beta-1, guest users can approve or reject quotes belonging to any client, not just their assigned clients. The `approve()` and `reject()` methods in the Guest Quotes controller, `application/modules/guest/controllers/Quotes.php`, call `approve_quote_by_id($quote_id)` and `reject_quote_by_id($quote_id)` directly without the `where_in('ip_quotes.client_id', $this->user_clients)` scoping that sibling methods use. A guest user assigned to one client can change another client's quote status by supplying sequential integer `quote_id` values, and `email_quote_status()` also sends notification emails. Additionally, `generate_pdf()` calls `mark_viewed($quote_id)` before checking the client scope, allowing a guest user to mark another client's quote as viewed. These issues are fixed in version 1.7.2-beta-1 and the subsequent stable version 1.7.2."
}
],
"source": {
"advisory": "GHSA-6xj3-274m-4mvg",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-6xj3-274m-4mvg",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-03T00:13:21.566579Z",
"id": "CVE-2026-55561",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-03T00:13:51.395Z"
}
}
]
}
}