Profile Builder <= 3.16.3 — Privilege Escalation to Unauthenticated Account Takeover
CVE-2026-15368Published · Updated Action summary
Affected: ≤3.16.3Update to 3.16.4 or newer
All remediation steps- Severity
- High7.3
- CVSS
- 7.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:LIntegrity- Low
A:LAvailability- Low
- Weakness
- CWE-269 Privilege Escalation
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor profile-builder
- Affected≤ 3.16.3
- Patched in3.16.4
Update to 3.16.4 or newer.
You are affected if you run ≤ 3.16.3. Version 3.16.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 3.16.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Jakub Herman.
The Profile Builder plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 3.16.3. This is due to the target user ID for auto-login after registration being passed as a user-controlled URL parameter (`uid`) with no server-side binding to the issued nonce, allowing any unauthenticated visitor to supply an arbitrary user ID alongside a self-generated valid nonce for the corresponding action. This makes it possible for unauthenticated attackers to log in as any registered user, including administrators, by crafting an autologin URL with an arbitrary user ID, because unauthenticated WordPress nonces have no user binding and the target user ID was supplied entirely via a user-controlled URL parameter.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor
All 59| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Unauthenticated Information Exposure ≤4.0.6Update to 4.0.7 | CVE-2026-125777 | |
| Medium6.3 | Authenticated (Contributor+) Privilege Escalation ≤4.0.5Update to 4.0.6 | CVE-2026-54854 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤4.0.5Update to 4.0.6 | CVE-2026-54855 | |
| Medium5.3 | Missing Authorization ≤4.0.5Update to 4.0.6 | CVE-2026-54853 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting <4.0.5Update to 4.0.5 | CVE-2026-111966 |
- Medium5.3Unauthenticated Information Exposure
≤4.0.6Update to 4.0.7
- Medium6.3Authenticated (Contributor+) Privilege Escalation
≤4.0.5Update to 4.0.6
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- Medium5.3Missing Authorization
≤4.0.5Update to 4.0.6
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<4.0.5Update to 4.0.5
Same weakness (Privilege Escalation)
All Privilege Escalation| Severity | Vulnerability | CVE | Published |
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| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
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ELEX WordPress HelpDesk & Customer Ticketing System
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Customer Reviews for WooCommerce
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Timeline
CVE published
Severity high, CVSS 7.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.