What the vulnerability does
01Description
The WP Plugin Info Card plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘containerid’ parameter in all versions up to, and including, 5.3.1 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. This issue is due to an incomplete patch for CVE-2025-31835.
Explanation of Vulnerability in Simple Terms
02Summary
The WP Plugin Info Card plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 5.3.1. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, potentially compromising their sessions or stealing sensitive data. The vulnerability affects the entire site scope due to how the plugin processes and displays user-supplied content.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view affected plugin content.
Potential impact on your site
04Site Impact
Visitors and admins may have their sessions hijacked, credentials stolen, or be redirected to malicious sites.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., contributor or subscriber role).
Key dates
06Disclosure timeline
June 3, 2025
CVE published
April 8, 2026
Record updated
