PT-2026-26797 · WordPress · Wp-Webauthn

Wesley · Published 2026-03-21 · Updated 2026-03-21 · CVE-2025-13910

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions WP-WebAuthn plugin for WordPress versions up to and including 1.3.4

Description The WP-WebAuthn plugin for WordPress is susceptible to Unauthenticated Stored Cross-Site Scripting through the wwa auth API endpoint. This is due to inadequate input sanitization and output escaping of user-supplied attributes when the plugin logs data. An unauthenticated attacker can inject arbitrary web scripts into pages, which will execute when a user accesses the plugin’s log page, provided logging is enabled in the plugin settings.

Recommendations Update the WP-WebAuthn plugin to a version later than 1.3.4.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-13910

Affected Products

Wp-Webauthn

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-13910 · Security Note
• https://plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-ajax.php#L982 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/44407fad-6ad4-4437-930f-b25a6c6203aa?source=cve · Note
• https://plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-admin-content.php#L319 · Note
• https://plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-ajax.php#L906 · Note
• https://twitter.com/CVEnew/status/2035237288276639829 · Twitter Post