SEPTEMBER 19, 2026
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Case File

CVE-2026-12108

MEDIUM · CVSS 4.4 EPSS 0.21%

Source: NVD + CISA KEV + EPSS · Published 2026-07-10 · Last synced 2026-08-09

CyberRota Analysis

AI-Generated

The Highlighting Code Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping, affecting all versions up to 2.2.0. Authenticated attackers with administrator-level permissions can exploit this vulnerability to inject malicious scripts that execute when users access compromised pages, particularly in multi-site installations or where unfiltered_html is disabled. WordPress site administrators, especially those managing multi-site setups, should prioritize addressing this vulnerability to mitigate potential security risks.

CVE
CVE-2026-12108
Severity
MEDIUM
CVSS
4.4
EPSS
0.21%
WordPress

Original NVD Description

The Highlighting Code Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.2.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.