CVE-2025-11873: WP BBCode <= 1.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
The WP BBCode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'url' shortcode in all versions up to, and including, 1.8.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-11873?
CVE-2025-11873 is classified as a high severity vulnerability due to its potential for Stored Cross-Site Scripting attacks.
How do I fix CVE-2025-11873?
To fix CVE-2025-11873, upgrade the WP BBCode plugin to a version newer than 1.8.1 which includes necessary security patches.
Who is affected by CVE-2025-11873?
All users of the WP BBCode plugin for WordPress, specifically those using versions up to and including 1.8.1, are affected by CVE-2025-11873.
What type of vulnerability is CVE-2025-11873?
CVE-2025-11873 is a Stored Cross-Site Scripting vulnerability resulting from insufficient input sanitization and output escaping.
Can CVE-2025-11873 be exploited by unauthenticated users?
The exploitation of CVE-2025-11873 requires authentication, meaning only authenticated users can potentially trigger the vulnerability.