What’s Vulnerable › Vulnerabilities

CVE-2026-3139: User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor <= 3.15.5 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Post Author Reassignment via Avatar Field

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-31 · updated 2026-07-25
• Weakness: CWE-639

Description

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 3.15.5 via the wppb_save_avatar_value() function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to reassign ownership of arbitrary posts and attachments by changing 'post_author'.

Affected products

• cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor: through 3.15.5

References

• https://plugins.trac.wordpress.org/changeset/3481772/profile-builder
• https://www.wordfence.com/threat-intel/vulnerabilities/id/760f7736-db49-4210-a2f3-3abb506106d7?source=cve

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