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EUVD-2026-20121 · Published Apr 8, 2026
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.
Weaknesses
CWE-79
CVSS scores
- v3.16.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
MITRE ATT&CK
InferredWhere this vulnerability fits in an attack
Initial Access
References
- 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-bcf0-cc3245e15bed?source=cve
Potentially impacted assets
See if this affects your attack surface
