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6.4
Wavr plugin for WordPress allows attackers to inject malicious scripts
CVE-2026-5506
Summary
The Wavr plugin for WordPress is insecure, allowing attackers to inject malicious scripts into pages, which can execute when users access those pages. This affects all versions up to and including 0.2.6. Update to a secure version to prevent this.
Original title
The Wavr plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `wave` shortcode in all versions up to, and including, 0.2.6. This is due to insufficient input sanitizat...
Original description
The Wavr plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `wave` shortcode in all versions up to, and including, 0.2.6. This is due to insufficient input sanitization and output escaping on user supplied attributes. 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.
nvd CVSS3.1
6.4
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
- https://plugins.trac.wordpress.org/browser/wavr/tags/0.2.6/wavr.php#L82
- https://plugins.trac.wordpress.org/browser/wavr/tags/0.2.6/wavr.php#L99
- https://plugins.trac.wordpress.org/browser/wavr/trunk/wavr.php#L82
- https://plugins.trac.wordpress.org/browser/wavr/trunk/wavr.php#L99
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d8987bc5-2bc0-4a92-bcf...
Published: 8 Apr 2026 · Updated: 9 Apr 2026 · First seen: 8 Apr 2026