CVE-2025-14003 is a vulnerability classified under CWE-862 (Missing Authorization) affecting the WordPress plugin 'Image Gallery – Photo Grid & Video Gallery' developed by wpchill. The issue exists in all versions up to and including 2.13.3, where the function add_images_to_gallery_callback() lacks proper capability checks. This missing authorization allows authenticated users with Author-level access or higher to add images to Modula galleries that belong to other users without permission. The vulnerability does not require user interaction and can be exploited remotely over the network (AV:N). The attack complexity is low (AC:L), and privileges required are low (PR:L), meaning any user with Author or higher roles can exploit it. The impact is limited to integrity (I:L) as attackers can modify gallery content but cannot affect confidentiality or availability. No known exploits have been reported in the wild, and no official patches have been linked yet. This vulnerability could be leveraged for content tampering, misleading gallery owners or visitors, or embedding malicious images. Given the widespread use of WordPress and the popularity of gallery plugins, this vulnerability poses a moderate risk to websites relying on this plugin for media management.

For European organizations, this vulnerability could lead to unauthorized modification of publicly visible image galleries, potentially damaging brand reputation or misleading users. While it does not expose sensitive data or disrupt service availability, the integrity compromise could be exploited for defacement or to insert inappropriate or malicious images. Organizations with multi-user WordPress environments where users have Author-level permissions are particularly at risk. This could affect marketing websites, e-commerce platforms, or any site using the plugin for visual content management. The risk is heightened in sectors where content integrity is critical, such as media, education, and government. Although no known exploits exist yet, the ease of exploitation and the commonality of the affected plugin suggest that attackers may develop exploits soon. European entities relying on WordPress plugins should prioritize assessing their exposure and readiness to respond.

1. Immediately audit user roles and permissions in WordPress, especially limiting Author-level access to trusted users only. 2. Monitor gallery content for unauthorized changes or additions, using file integrity monitoring or WordPress activity logs. 3. Until an official patch is released, consider disabling or replacing the vulnerable plugin with a secure alternative. 4. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting gallery modification endpoints. 5. Educate site administrators and content managers about the risk and signs of exploitation. 6. Regularly check for updates from the plugin vendor and apply patches promptly once available. 7. Implement multi-factor authentication (MFA) for all authenticated users to reduce the risk of compromised accounts being used to exploit this vulnerability. 8. Conduct periodic security reviews of all installed plugins to identify and mitigate similar authorization issues.