CVE-2026-6816 MEDIUM

CVE-2026-6816: TFA Basic Plugins - Access Bypass

Vendor Drupal
Product TFA Basic Plugins
Weakness CWE-267
Published May 28, 2026
Last update May 29, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

An access bypass vulnerability in Drupal TFA Basic Plugins allows users with the administer users permission to view or generate recovery codes for other users. This issue affects TFA Basic Plugins: from 7.x-1.0 through 7.x-1.2.

Explanation of Vulnerability in Simple Terms

02Summary

The TFA Basic module for Drupal contains a privilege-escalation vulnerability affecting versions 7.x-1.0 through 7.x-1.2. An authenticated administrator can exploit improper access control to read or modify sensitive data within the module's scope. The vulnerability requires high-level privileges and does not involve user interaction. Site owners should update to a version newer than 7.x-1.2.

What an attacker can do

03Attacker Capabilities

Read or modify sensitive data within the TFA Basic module if they have administrator access.

Potential impact on your site

04Site Impact

An admin account could be misused to access or alter two-factor authentication settings or related sensitive data.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level privileges on the Drupal site.

Key dates

06Disclosure timeline

May 28, 2026 CVE published
May 29, 2026 Record updated