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[GHSA-5j8p-mmp9-6fj8] Insufficient ownership checks in clientarea.php allow... #7685

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[GHSA-5j8p-mmp9-6fj8] Insufficient ownership checks in clientarea.php allow... #7685

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30 changes: 22 additions & 8 deletions advisories/unreviewed/2026/05/GHSA-5j8p-mmp9-6fj8/GHSA-5j8p-mmp9-6fj8.json
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Original file line number Diff line number Diff line change
@@ -1,19 +1,37 @@
{
"schema_version": "1.4.0",
"id": "GHSA-5j8p-mmp9-6fj8",
"modified": "2026-05-13T00:48:11Z",
"modified": "2026-05-13T00:49:16Z",
"published": "2026-05-12T18:30:40Z",
"aliases": [
"CVE-2026-29204"
],
"details": "Insufficient ownership checks in `clientarea.php` allow an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's resources and their cPanel account.",
"summary": "Authenticated Account-Scope Bypass in WHMCS Client Area",
"details": "Insufficient ownership checks in `clientarea.php` allow an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's resources and their cPanel account.\n\nAffected versions:\n- All WHMCS 9.x builds prior to 9.0.4.\n- All WHMCS 8.x builds prior to 8.13.3.\n- All WHMCS 7.x builds after 7.4.0.\n",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "WHMCS"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
]
}
],
"affected": [],
"references": [
{
"type": "ADVISORY",
Expand All @@ -22,10 +40,6 @@
{
"type": "WEB",
"url": "https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204"
},
{
"type": "WEB",
"url": "https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204?token=_4RH-0s0febHsrNiC8GdPymsqg3_nSdT"
}
],
"database_specific": {
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