CVE-2026-8846
Description
The Tuxquote plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'TUXQUOTE' shortcode in versions up to, and including, 1.3. This is due to insufficient input sanitization and output escaping on user supplied attributes ('title', 'align', and 'width') in the tuxquote_build_format() function, which are concatenated into the rendered HTML without being passed through esc_attr() or esc_html(). 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 WordPress components
-
tuxquote Plugin · tuxquoteUp to and including 1.3View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- eldougo Tuxquote — Up to and including 1.3
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tuxquote/tags/1.3/tuxquote.php#L81
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tuxquote/tags/1.3/tuxquote.php#L91
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7ea6079f-45a1-438f-890f-36457b7468ec?source=cve
- nvd.nist.gov Official NVD record