Skip to content
OpenAdvisories
Medium · 4.3 CVE-2026-2518 EUVD-2026-31412GHSA-jjqp-72fq-xmqp

FastX <= 1.0.2 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Installation and Activation

Published May 22, 2026 · Updated May 22, 2026 · Assigned by Wordfence

Description

The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and activation due to missing capability checks on the 'ultp_install_callback' and 'ultp_activate_callback' functions in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the PostX plugin.

Affected products

VendorProductAffectedFixed
wpxpo FastX ≤ 1.0.2 —

References