CVE WatchAug 6, 2026

CVE-2026-5158

The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting

CVSS

6.4

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Aug 6, 2026 · Last modified: Aug 6, 2026 · CWE-79

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references

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