Is CVE-2026-3139 actively exploited?

No active exploitation of CVE-2026-3139 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3139 be exploited remotely?

Yes. CVE-2026-3139 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3139?

CVE-2026-3139 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-3139

CWE-639Published: March 31, 2026· Updated: Apr 1, 2026

4.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.3th

Official 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'.

NVD Source

Technical Analysis

CVE-2026-3139 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.