CVE-2026-16495 — Countdown Timer – Widget Countdown <= 3.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'redirect_url' Shortcode Attribute
The Countdown Timer – Widget Countdown plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'redirect_url' Shortcode Attribute in all versions up to, and includ…
Published: 2026-10-14 · CVSS: 6.4 · CVSS 3.1
The Countdown Timer – Widget Countdown plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'redirect_url' Shortcode Attribute in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output 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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7