SEPTEMBER 19, 2026
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Case File

CVE-2026-15100

MEDIUM · CVSS 6.4 EPSS 0.19%

Source: NVD + CISA KEV + EPSS · Published 2026-07-24 · Last synced 2026-08-23

CyberRota Analysis

AI-Generated

The Post Grid Gutenberg Blocks – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the 'searchnoresult' block attribute, affecting all versions up to 5.0.32. This vulnerability allows authenticated attackers with contributor-level access to inject malicious scripts that execute in the browsers of users with higher privileges, such as Editors or Administrators, when they preview affected posts. WordPress site administrators and developers using this plugin should prioritize patching to mitigate the risk of cross-privilege attacks.

CVE
CVE-2026-15100
Severity
MEDIUM
CVSS
6.4
EPSS
0.19%
WordPress Java

Original NVD Description

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 arbitrary JavaScript in the browser session of an Editor or Administrator who previews that post.