CVE-2026-24631 identifies an authorization bypass vulnerability in the Mikado-Themes Rosebud product, specifically affecting versions up to 1.4. The root cause is an incorrectly configured access control mechanism that relies on user-controlled keys, allowing attackers to manipulate these keys to bypass security restrictions. This means that an attacker can gain unauthorized access to functionalities or data that should be protected by access control policies. The vulnerability arises from improper validation and enforcement of access control levels within the theme's codebase. Since the flaw is in a theme commonly used in WordPress environments, it potentially affects websites that utilize Rosebud for managing user permissions or content visibility. No CVSS score has been assigned yet, and no patches or known exploits have been reported at the time of publication. However, the vulnerability's nature suggests it can be exploited remotely without authentication or user interaction, making it a significant risk. The impact includes unauthorized data access, privilege escalation, and potential compromise of website integrity. The vulnerability underscores the importance of secure coding practices in theme development, especially regarding access control and user input handling.

For European organizations, this vulnerability poses a risk of unauthorized access to sensitive information and administrative functionalities on websites using the Rosebud theme. This can lead to data breaches, defacement, or misuse of web resources, impacting confidentiality and integrity. Organizations in sectors such as e-commerce, government, and media that rely on WordPress themes for their online presence are particularly vulnerable. The breach of access controls could also facilitate further attacks, such as injecting malicious content or pivoting to internal networks. The absence of patches increases exposure time, and the lack of required authentication lowers the barrier for exploitation. Given the widespread use of WordPress and the popularity of Mikado-Themes in Europe, the vulnerability could affect a broad range of entities, potentially disrupting business operations and damaging reputations.

1. Immediately audit all instances of Mikado-Themes Rosebud in use and identify versions up to 1.4. 2. Restrict or sanitize all user inputs that influence access control keys to prevent manipulation. 3. Implement additional server-side access control checks independent of theme-level controls. 4. Monitor web server logs for unusual access patterns or attempts to manipulate keys. 5. Temporarily disable or replace the Rosebud theme with a secure alternative until an official patch is released. 6. Engage with Mikado-Themes vendor or community to obtain updates or patches as soon as they become available. 7. Educate web administrators on the risks of relying solely on theme-based access controls and encourage defense-in-depth strategies. 8. Use Web Application Firewalls (WAF) to detect and block suspicious requests targeting access control bypass attempts.