CVE-2026-3354

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.

• CWE-79

• https://plugins.trac.wordpress.org/browser/wikilookup/tags/1.1.5/views/admin_wikilookup_display.php#L26
• https://plugins.trac.wordpress.org/browser/wikilookup/trunk/views/admin_wikilookup_display.php#L26
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d7526228-4e21-430c-90ad-1476c81698ad?source=cve

Published

Mar 21, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-33534EspoCRM is an open source customer relationship management a…4.3
• CVE-2026-33535ImageMagick is free and open-source software used for editin…5.5
• CVE-2026-33536ImageMagick is free and open-source software used for editin…4.7
• CVE-2026-33537Lychee is a free, open-source photo-management tool. The pat…5
• CVE-2026-33538Parse Server is an open source backend that can be deployed …7.5
• CVE-2026-33539Parse Server is an open source backend that can be deployed …7.2
• CVE-2026-33540Distribution is a toolkit to pack, ship, store, and deliver …7.5
• CVE-2026-33541TSPortal is the WikiTide Foundation’s in-house platform used…6.5
• CVE-2026-33542Incus is a system container and virtual machine manager. Pri…4.8
• CVE-2026-33543FOSSBilling is a free, open-source billing and client manage…9.3
• CVE-2026-33544Tinyauth is an authentication and authorization server. Prio…7.7
• CVE-2026-33545MobSF is a mobile application security testing tool used. Pr…6.5