User Profile Builder <= 4.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'display_name' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107748
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-16 06:17:05 UTC
Updated2026-10-16 06:17:05 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 'display_name' parameter in all versions up to, and including, 4.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload persists in wp_comments.comment_author independently of the user account, so removing or changing the attacker's display name after the comment is posted does not neutralize the stored script.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 4.0.3 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/functions.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/2f466add-992b-46c7-a1cc-5c05d... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/front-end/default-fields/d... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3741133/profile-builder [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/functions.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3741133/profile-builder/trunk/features/functions.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/functions.php [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: UKO (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-08T18:45:36.000ZVendor Notified
CNA2026-10-15T16:37:45.000ZDisclosed

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