CVE-2025-48119 is a vulnerability classified under CWE-94, which pertains to improper control of code generation, commonly known as code injection. This vulnerability affects the RS WP Book Showcase plugin developed by RS WP THEMES, specifically versions up to 6.7.41. Code injection vulnerabilities occur when an application allows untrusted input to be interpreted as executable code, potentially enabling attackers to inject and execute arbitrary code within the context of the vulnerable application. In this case, the vulnerability arises from insufficient validation or sanitization of user-supplied input that is used in code generation or execution processes within the plugin. The CVSS v3.1 base score for this vulnerability is 5.3, indicating a low severity level. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) reveals that the attack vector is network-based (AV:N), requires low attack complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N). The scope remains unchanged (S:U), and the impact affects confidentiality slightly (C:L) but does not affect integrity (I:N) or availability (A:N). No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability could allow an attacker to inject code that may lead to limited information disclosure or other minor confidentiality impacts but does not directly compromise data integrity or system availability. Given the plugin's role in WordPress environments, exploitation could be attempted remotely without authentication, making it accessible to a broad range of attackers if the plugin is in use and exposed.

For European organizations using the RS WP Book Showcase plugin, the primary impact is a potential confidentiality breach due to code injection, which could expose sensitive information managed or displayed by the plugin. Although the severity is low and the impact on integrity and availability is not evident, the vulnerability could be leveraged as a foothold for further attacks if combined with other vulnerabilities or misconfigurations. Organizations relying on WordPress sites with this plugin, especially those showcasing proprietary or sensitive book-related content, could face data leakage risks. The lack of required privileges and user interaction means that attackers can attempt exploitation remotely and automatically, increasing the risk of opportunistic scanning and exploitation attempts. However, the absence of known exploits in the wild and the low CVSS score suggest that immediate widespread impact is unlikely. Still, organizations should not disregard the vulnerability, particularly those in sectors where data confidentiality is paramount, such as publishing, education, or cultural institutions.

1. Immediate assessment of all WordPress instances to identify installations of the RS WP Book Showcase plugin, particularly versions up to 6.7.41. 2. Monitor official RS WP THEMES channels and security advisories for the release of patches or updates addressing CVE-2025-48119 and apply them promptly upon availability. 3. Implement Web Application Firewall (WAF) rules to detect and block suspicious input patterns that could be used for code injection attempts targeting the plugin. 4. Restrict access to WordPress administrative and plugin-related endpoints using IP whitelisting or VPN access where feasible to reduce exposure. 5. Conduct regular security audits and code reviews of customizations related to the plugin to ensure no additional injection vectors exist. 6. Employ security plugins that can detect anomalous behavior or code injection attempts within WordPress environments. 7. Maintain up-to-date backups of WordPress sites to enable rapid recovery in case of compromise. 8. Educate site administrators on the risks of installing unverified plugins and the importance of timely updates.