EUVD-2026-20431
GHSA-3w3c-w6r8-vrjc
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Description
The PrivateContent Free plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'align' shortcode attribute in the [pc-login-form] shortcode in all versions up to, and including, 1.2.0. This is due to insufficient input sanitization and output escaping on the 'align' attribute. Specifically, the attribute value flows from the shortcode through pc_login_form() to pc_static::form_align(), where it is directly concatenated into an HTML class attribute without esc_attr() or any 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.
Analysis
Stored Cross-Site Scripting in PrivateContent Free WordPress plugin versions up to 1.2.0 allows authenticated contributors and above to inject arbitrary JavaScript through the 'align' shortcode attribute in [pc-login-form], which executes when any user visits an affected page. The vulnerability stems from the 'align' parameter being concatenated directly into an HTML class attribute without proper escaping (esc_attr), enabling persistent XSS attacks. …
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