CVE-2026-8894

The iWR Tooltip plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `iwrtooltip` shortcode in versions up to, and including, 1.0. This is due to insufficient input sanitization and output escaping on user supplied attributes in the iwr_tooltip() shortcode handler — the `title` attribute is concatenated directly into an HTML attribute without esc_attr() or any other escaping. 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-79

• https://plugins.trac.wordpress.org/browser/iwr-tooltip/tags/1.0/iwr-tooltip.php#L37
• https://plugins.trac.wordpress.org/browser/iwr-tooltip/tags/1.0/iwr-tooltip.php#L41
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9dd6433f-cc12-47c7-a641-3da8a6b0f15b?source=cve

Published

May 27, 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.
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