PT-2026-20638

CVE-2026-1646

Published

2026-02-18

Updated

2026-02-23

Description by

CVSS 3.1

6.4

Medium

MetricsAV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Advance Block Extend plugin for WordPress versions through 1.0.4

Description The Advance Block Extend plugin for WordPress has a Stored Cross-Site Scripting issue. This is due to insufficient input sanitization and output escaping in the TitleColor block attribute within the Latest Posts Gutenberg block. Authenticated attackers with Contributor-level access or higher can inject arbitrary web scripts into pages. These scripts will execute when a user accesses the affected page.

Recommendations Update the Advance Block Extend plugin to a version later than 1.0.4.

Exploitability

Fix

Impacts

Researchers

Athiwat Tiprasaharn

Itthidej Aramsri

Vilaysone Chanthavong

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')