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Vulnerabilities and Security Researches

HTML Shortcodes, CVE-2026-1809

CVE, Research URL

CVE-2026-1809

Application

HTML Shortcodes

Published on
Feb 11, 2026
Research Description
The HTML Tag Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
Affected versions
max 1.1.
Status
vulnerable