What is CVE-2025-13910?

CVE-2025-13910 is a medium-severity vulnerability in Axton Wp-Webauthn, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-21.

How severe is CVE-2025-13910?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Axton Wp-Webauthn

CVE-2025-13910

The WP-WebAuthn plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting via the `wwa_auth` AJAX endpoint in all versions up to, and including, 1.3.4 due to insufficient input sanitization and output escaping on user supplied attributes logged by the plugin. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the plugin's log page, provided that the logging option is enabled in the plugin settings.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (18.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Axton Wp-webauthn — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-13910?: CVE-2025-13910 is a medium-severity vulnerability in Axton Wp-Webauthn, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-21.
How severe is CVE-2025-13910?: Medium severity. CVSS v3 base score is 6.1 out of 10.