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CVE-2026-15826 User Profile Builder <= 3.16.4 - Unauthenticated Authentication Bypass via Type Confusion to Administrator Account Takeover via 'username' Parameter

🗓️ 15 Aug 2026 06:38:09Reported by WordfenceType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

User Profile Builder <=3.16.4 type confusion in absint() allows unauthenticated admin account takeover.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-15826
15 Aug 202606:38
attackerkb
circl
Circl
CVE-2026-15826
15 Aug 202604:04
circl
cve
CVE
CVE-2026-15826
14 Aug 202618:30
cve
euvd
EUVD
EUVD-2026-59593
15 Aug 202606:38
euvd
nvd
NVD
CVE-2026-15826
15 Aug 202607:16
nvd
ptsecurity
Positive Technologies
PT-2026-72877
15 Aug 202600:00
ptsecurity
wordfence
Wordfence Blog
40,000 WordPress Sites affected by Authentication Bypass Vulnerability in User Profile Builder WordPress Plugin
14 Aug 202618:30
wordfence
[
  {
    "vendor": "cozmoslabs",
    "product": "User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "lessThanOrEqual": "3.16.4",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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