CVE-2025-13910
CVE-2025-13910 is a medium-severity vulnerability with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-208914
- Weakness: CWE-79
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2025-13910?
- CVE-2025-13910 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-13910 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-13910?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-13910 have an EU (EUVD) identifier?
- Yes. CVE-2025-13910 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208914.
- When was CVE-2025-13910 published?
- CVE-2025-13910 was published on 2026-03-21 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-admin-content.php#L319
- https://plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-ajax.php#L906
- https://plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-ajax.php#L982
- https://www.wordfence.com/threat-intel/vulnerabilities/id/44407fad-6ad4-4437-930f-b25a6c6203aa?source=cve
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