Critical Authentication Bypass Vulnerability Patched in SiteGround Security Plugin

WordFence - 

On March 10, 2022 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “SiteGround Security”, a WordPress plugin that is installed on over 400,000 sites. This flaw makes it possible for attackers to gain administrative user access on vulnerable sites when two-factor authentication (2FA) is enabled but not yet configured for an administrator.

Wordfence Premium, Wordfence Care, and Wordfence Response received a set of firewall rules on March 10, 2022 to provide protection against any attackers trying to exploit this vulnerability. Wordfence Free users will receive this same protection 30 days later on April 9, 2022

After sending the full disclosure details to the SiteGround security team on March 10, 2022 a patch was released the next day on March 11, 2022. While the plugin was partially patched immediately, it wasn’t optimally patched until April 7, 2022.

Sites hosted on the SiteGround platform have automatically been updated to the patched version while those hosted elsewhere will require a manual update, if auto-updates are not enabled for the plugin. We strongly recommend ensuring that your site has been updated to the latest patched version of “SiteGround Security”, which is version 1.2.6 at the time

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