PT-2026-31104 · Lucascaro · Wavr

Zakaria · Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-5506

NVD

CVSS v3.1

6.4

Medium

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-5506

Affected Products

Wavr

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-5506 · Security Note
• https://plugins.trac.wordpress.org/browser/wavr/tags/0.2.6/wavr.php#L99 · Note
• https://plugins.trac.wordpress.org/browser/wavr/tags/0.2.6/wavr.php#L82 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/d8987bc5-2bc0-4a92-bcf0-cc3245e15bed?source=cve · Note
• https://plugins.trac.wordpress.org/browser/wavr/trunk/wavr.php#L99 · Note
• https://plugins.trac.wordpress.org/browser/wavr/trunk/wavr.php#L82 · Note