CVE-2025-13910 WP-WebAuthn <= 1.3.4 - Unauthenticated Stored Cross-Site Scripting
Unauthenticated attackers can inject arbitrary scripts into the WP-WebAuthn log page if logging is enabled, leading to stored XSS execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-13910?
CVE-2025-13910 is a medium-severity cross-site scripting vulnerability in axton WP-WebAuthn, published on 21 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2025-13910?
How do I fix CVE-2025-13910?
No fix has been published for CVE-2025-13910 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-13910 being exploited?
There is no known exploitation of CVE-2025-13910 in the wild and no public exploit code.
Sources
Also known as GHSA-66vw-3ggr-5vvg.