Vulnerability Description
The Wikilookup plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Popup Width' setting in all versions up to, and including, 1.1.5. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/wikilookup/tags/1.1.5/views/admin_wik
- https://plugins.trac.wordpress.org/browser/wikilookup/trunk/views/admin_wikilook
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d7526228-4e21-430c-90a
FAQ
What is CVE-2026-3354?
CVE-2026-3354 is a vulnerability with a CVSS score of 4.4 (MEDIUM). The Wikilookup plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Popup Width' setting in all versions up to, and including, 1.1.5. This is due to insufficient input sanitizati...
How severe is CVE-2026-3354?
CVE-2026-3354 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3354?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.