CVE-2025-14003 identifies a missing authorization vulnerability (CWE-862) in the WordPress plugin 'Image Gallery – Photo Grid & Video Gallery' developed by wpchill. The vulnerability exists in the add_images_to_gallery_callback() function, which lacks proper capability checks to verify if the authenticated user has permission to modify a specific gallery. As a result, any user with Author-level privileges or higher can add images to Modula galleries owned by other users, bypassing intended access controls. This flaw affects all plugin versions up to and including 2.13.3. The vulnerability does not require user interaction and can be exploited remotely over the network by authenticated users. The CVSS v3.1 base score is 4.3, indicating a medium severity, with the vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, meaning it is remotely exploitable with low attack complexity, requires privileges, no user interaction, unchanged scope, no confidentiality or availability impact, but causes integrity loss. No patches were linked at the time of publication, and no known exploits have been reported in the wild. The vulnerability could allow attackers to manipulate gallery content, potentially leading to misinformation, defacement, or reputational damage for affected sites.

The primary impact of CVE-2025-14003 is unauthorized modification of gallery content within WordPress sites using the vulnerable plugin. Attackers with Author-level access can add images to galleries they do not own, potentially inserting inappropriate, misleading, or malicious content. This can degrade the integrity of website content, harm brand reputation, and confuse or mislead site visitors. Although it does not directly affect confidentiality or availability, the integrity compromise can facilitate further social engineering or phishing attacks if malicious images are added. For organizations relying on WordPress for content management, especially those with multiple content contributors, this vulnerability undermines role-based access controls and content governance. The ease of exploitation by authenticated users means insider threats or compromised Author accounts can be leveraged. The lack of known exploits reduces immediate risk, but the widespread use of WordPress and the plugin increases potential exposure globally.

To mitigate CVE-2025-14003, organizations should first check for and apply any official patches or updates released by wpchill addressing this vulnerability. If no patch is available, temporarily disabling the plugin or restricting Author-level user permissions can reduce risk. Implement strict user role management by limiting Author privileges to trusted users only. Employ additional access control plugins or custom code to enforce capability checks on gallery modification functions. Monitor logs for unusual gallery modification activities, especially from Author-level users. Consider isolating or sandboxing galleries to minimize cross-user content manipulation. Educate content contributors about the risk of compromised accounts and enforce strong authentication mechanisms such as multi-factor authentication (MFA) for all users with elevated privileges. Regularly audit plugin usage and permissions to detect and respond to unauthorized changes promptly.