CVE-2026-96840: Post Grid Gutenberg Blocks – PostX 0 through 5.1.0

Affected technology

Post Grid Gutenberg Blocks – PostX · 0 through 5.1.0
wpxpo

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

A Subscriber-level user can store a double-quote in their display_name via /wp-admin/profile.php that subsequently breaks out of the alt="" attribute at Archive_Title.php:144. Vendor/CNA’s CVSS 3.1 assessment (base score 7.2/10) rates confidentiality and integrity impact as low; availability impact as none.