CVE-2026-109447
The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Privilege Escalation in all versio…
Published Oct 16, 2026 · corrected/updated Oct 16, 2026 · evidence confidence high
The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.0.3 via the parameter handled by the function. The vulnerability exists because the activation handler passes the attacker-supplied role value directly to with no allow-list validation, and the 4.0.3 reserved-name check exempts pre-existing form fields from the block, allowing a legacy field with meta-name to persist and bridge attacker-controlled request input into the serialized signup record stored in . This makes it possible for unauthenticated attackers to gain a fully activated WordPress administrator account by submitting through the public shortcode form and subsequently clicking the confirmation activation link. Exploitation requires the site to have a legacy form field with meta-name carried over from before the 4.0.3 upgrade, email confirmation enabled, and open user registration — all stable site-state conditions once established.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-109447 is a high public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected version ranges have not been ingested yet. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 8.1, EPSS 0.3%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-269. Sources contributing to this record: cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 16, 2026 · NIST NVD
Detected
The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.0.3 via the parameter handled by the function. The vulnerability exists because the activation handler passes the attacker-supplied role value directly to with no allow-list validation, and the 4.0.3 reserv
Sources
- CVE.orgVulnerability recordCVE-2026-109447
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-109447
30-day exploitation probability 0.3%
first.org - NIST NVDVulnerability recordCVE-2026-109447
The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.0.3 via the parameter handled by the fu
nvd.nist.gov