What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
PrivateContent Free versions up to 1.2.0 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. Low-privileged users can exploit this without user interaction to compromise site integrity and read sensitive data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and read or modify site data.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors, potentially stealing credentials or modifying content.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the site; no user interaction required.
Key dates
06Disclosure timeline
April 8, 2026
CVE published
April 8, 2026
Record updated
