What’s Vulnerable › Vulnerabilities

CVE-2025-13730: OpenID Connect Generic Client <= 3.10.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-18 · updated 2026-06-17
• Weakness: CWE-79

Description

The OpenID Connect Generic Client plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'openid_connect_generic_auth_url' shortcode in all versions up to, and including, 3.10.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• daggerhart OpenID Connect Generic Client: through 3.10.0

References

• https://plugins.trac.wordpress.org/browser/daggerhart-openid-connect-generic/trunk/includes/openid-connect-generic-client-wrapper.php#L241
• https://plugins.trac.wordpress.org/browser/daggerhart-openid-connect-generic/trunk/openid-connect-generic.php#L168
• https://plugins.trac.wordpress.org/changeset/3418927
• https://www.wordfence.com/threat-intel/vulnerabilities/id/fe5fd453-b1fc-4d52-bb46-aebd68508891?source=cve

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