User Profile Builder <= 4.0.0 - Unauthenticated Stored Cross-Site Scripting via 'email' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-75964
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-01 06:16:37 UTC
Updated2026-09-01 20:47:54 UTC
DescriptionThe User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in all versions up to, and including, 4.0.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload reaches administrators with the manage_options capability when they visit the Users > Unconfirmed Email Addresses list table and interact with row-action links, as the poisoned javascript: href is rendered verbatim into the page HTML by row_actions().

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.002190000 probability, percentile 0.123050000 (date 2026-09-03)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cozmoslabs User Profile Builder Beautiful User Registration Forms User Profiles User Role Editor affected 4.0.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.0/features/email-confirmatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.0/features/email-confirmatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.0/features/email-confirmatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3666521/profile-builder [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/b0bd0377-8242-426d-a115-53157... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.0/assets/lib/class-list-tabl... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Wordfence PRISM (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-18T17:06:44.000ZVendor Notified
CNA2026-08-31T17:04:24.000ZDisclosed

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