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Threat Entry
Updated 2026-08-12
CVE-2026-5158 - Post Grid Gutenberg Blocks – PostX Plugin
The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'inputPlaceHolder' parameter in all versions up to, and including, 5.0.13 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
PLUGIN
Post Grid Gutenberg Blocks – PostX
CVE-2026-5158
Risk Score
Threat Entry
Updated 2026-07-24
CVE-2026-15100 - Post Grid Gutenberg Blocks – PostX Plugin
The Post Grid Gutenberg Blocks – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'searchnoresult' Block Attribute in all versions up to, and including, 5.0.32 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is particularly concerning in a cross-privilege scenario where a Contributor creates a pending or draft post containing the malicious block attribute, which then executes…
PLUGIN
Post Grid Gutenberg Blocks – PostX
CVE-2026-15100
Risk Score