CVE-2026-8846
Tuxquote <= 1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | eldougo |
| Product | tuxquote |
| Published | May 27, 2026 |
| Last Updated | May 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
eldougo / Tuxquote
0 ≤ 1.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/7ea6079f-45a1-438f-890f-36457b7468ec?source=cve 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
Credits
nail majdeddine