WP-WebAuthn <= 1.3.4 - Unauthenticated Stored Cross-Site Scripting

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Summary

CVECVE-2025-13910
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-21 04:16:49 UTC
Updated2026-04-22 21:32:08 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.001020000 probability, percentile 0.280090000 (date 2026-04-22)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Axton WP-WebAuthn affected 1.3.4 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-admin-content.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-ajax.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/44407fad-6ad4-4437-930f-b25a6... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-webauthn/tags/1.3.4/wwa-ajax.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: wesley (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-20T15:20:53.000ZDisclosed
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