Vulnerability · Published Jun 19, 2026 · Assigned by Wordfence

CVE-2026-11551Branda – White Label & Branding, Free Login Page Customizer <= 3.4.29 - Unauthenticated Privilege Escalation via Account Takeover

Critical 9.8

In plain English

A critical-severity security flaw in Branda – White Label & Branding, Free Login Page Customizer from wpmudev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.6%top 50.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

The Branda plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 3.4.29. This is due to the plugin not properly validating a user's identity prior to updating their password. This makes it possible for unauthenticated attackers to change arbitrary user's passwords, including administrators, and leverage that to gain access to their account.

Affected products (as reported)

Vendor	Product	Versions
wpmudev	Branda – White Label & Branding, Free Login Page Customizer	0 – through 3.4.29

Weakness: CWE-640 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In plain English

Official description

Affected products (as reported)

References