AUGUST 16, 2026
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Case File

CVE-2026-5158

MEDIUM · CVSS 6.4 EPSS 0.16%

Source: NVD + CISA KEV + EPSS · Published 2026-08-06 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The PostX plugin for WordPress is susceptible to Stored Cross-Site Scripting due to inadequate input sanitization in the 'inputPlaceHolder' parameter, affecting all versions up to 5.0.13. This vulnerability allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into pages, which can execute when other users visit those pages. WordPress site administrators using this plugin should prioritize patching to mitigate potential exploitation risks.

CVE
CVE-2026-5158
Severity
MEDIUM
CVSS
6.4
EPSS
0.16%
WordPress

Original NVD 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.