Overview
CVE-2025-66101 identifies a Missing Authorization vulnerability, also known as a Broken Access Control vulnerability, within the CBX Bookmark & Favorite WordPress plugin. This flaw allows attackers to bypass intended security restrictions and potentially access or manipulate user data without proper authorization. The vulnerability affects versions of the plugin up to and including 2.0.1.
Technical Details
The vulnerability arises from improperly configured access control mechanisms within the plugin. Specifically, certain functionalities related to bookmark and favorite management lack sufficient authorization checks. This means an attacker, even with low privileges (or no privileges at all in some cases), could potentially perform actions they are not authorized to do. This can include viewing, modifying, or deleting bookmarks/favorites belonging to other users, potentially exposing sensitive information or disrupting the intended functionality of the plugin.
The Patchstack vulnerability report provides more specific details about the vulnerable code sections.
CVSS Analysis
Currently, the CVSS score for CVE-2025-66101 is listed as N/A. This may be because the analysis is ongoing or that definitive impact metrics are still being evaluated. A full CVSS score will provide a more concrete understanding of the risk this vulnerability poses. Once available, factors such as attack vector, attack complexity, privileges required, user interaction, scope, confidentiality impact, integrity impact, and availability impact will contribute to the final score.
Possible Impact
The exploitation of CVE-2025-66101 can lead to several adverse consequences, including:
- Data Breach: Unauthorized access to user bookmarks and favorites could reveal private browsing habits or sensitive information stored in the bookmarked content.
- Data Manipulation: Attackers could modify or delete bookmarks and favorites, disrupting the user experience and potentially leading to data loss.
- Privilege Escalation: In certain scenarios, successful exploitation could lead to further compromise of the WordPress website.
- Website Defacement: While less likely, the possibility of more widespread damage exists if the attacker gains more extensive access.
Mitigation or Patch Steps
The most crucial step to mitigate CVE-2025-66101 is to update the CBX Bookmark & Favorite plugin to the latest available version. The vendor, Sabuj Kundu, is expected to release a patch addressing this vulnerability. Monitor the WordPress plugin repository and the plugin developer’s website for updates.
In the meantime, consider these temporary mitigation measures:
- Disable the plugin: If the plugin is not essential, disabling it completely eliminates the risk.
- Implement stricter access control: If possible, configure the plugin to restrict access to bookmark management features to only the necessary users. However, this might not fully address the underlying vulnerability.
