CVE-2025-14071 is a vulnerability classified under CWE-502 (Deserialization of Untrusted Data) found in the Live Composer – Free WordPress Website Builder plugin, versions up to and including 2.0.2. The flaw arises from insecure deserialization in the dslc_module_posts_output shortcode, allowing authenticated users with Contributor-level privileges or higher to inject malicious PHP objects. This PHP Object Injection vulnerability can lead to severe consequences such as arbitrary code execution, file deletion, or sensitive data disclosure, but only if a suitable POP (Property Oriented Programming) gadget chain exists in other installed plugins or themes. Without such a gadget chain, the vulnerability cannot be exploited to cause harm. The attack vector is remote network-based (AV:N), requires low privileges (PR:L), no user interaction (UI:N), and has a high complexity (AC:H) due to the need for a POP chain. The vulnerability affects the confidentiality, integrity, and availability of the affected WordPress site, reflected in its CVSS 3.1 score of 7.5. No public exploits are known yet, but the risk remains significant for sites using this plugin alongside vulnerable themes or plugins. The vulnerability was published on December 21, 2025, and is currently unpatched, with no official patch links available. The vulnerability's impact depends heavily on the presence of other vulnerable components that provide the necessary POP chain for exploitation.

For European organizations, this vulnerability poses a significant risk to WordPress-based websites using the Live Composer plugin, especially those that allow Contributor-level user access. If exploited, attackers could execute arbitrary code, delete files, or exfiltrate sensitive data, potentially leading to website defacement, data breaches, or service disruption. This can damage organizational reputation, lead to regulatory non-compliance (e.g., GDPR violations), and cause financial losses. The requirement for a POP chain means the impact is contingent on the presence of other vulnerable plugins or themes, which are common in complex WordPress environments. Organizations with public-facing websites, e-commerce platforms, or critical web services built on WordPress are particularly at risk. The vulnerability's exploitation could also serve as a foothold for further lateral movement or persistent access within the network.

1. Immediately audit all WordPress installations for the presence of the Live Composer plugin and identify the version in use. 2. If possible, remove or disable the Live Composer plugin until a patch is released. 3. Restrict Contributor-level and higher privileges to trusted users only, minimizing the attack surface. 4. Conduct a thorough review of all installed plugins and themes to identify potential POP gadget chains that could be leveraged in exploitation. 5. Employ Web Application Firewalls (WAFs) with rules to detect and block suspicious deserialization payloads targeting the vulnerable shortcode. 6. Monitor logs for unusual activity related to the dslc_module_posts_output shortcode or unexpected PHP object deserialization attempts. 7. Keep WordPress core, plugins, and themes updated to reduce the risk of chained vulnerabilities. 8. Consider implementing application-level sandboxing or PHP hardening techniques to limit the impact of potential code execution. 9. Educate site administrators and developers about the risks of deserialization vulnerabilities and secure coding practices. 10. Prepare incident response plans specific to web application compromise scenarios.