SEPTEMBER 17, 2026
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Case File

CVE-2026-18488

MEDIUM · CVSS 6.4 EPSS 0.33%

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The Blocksy Companion plugin for WordPress is susceptible to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the 'tagName' Block Attribute. This vulnerability allows authenticated attackers with author-level access or higher to inject malicious scripts into pages, which will execute when users visit those pages. WordPress site administrators using this plugin should prioritize patching to mitigate potential exploitation risks.

CVE
CVE-2026-18488
Severity
MEDIUM
CVSS
6.4
EPSS
0.33%
WordPress

Original NVD Description

The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'tagName' Block Attribute (blocksy/dynamic-data) in all versions up to, and including, 2.1.51 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.