CVE-2024-12103 is an authorization bypass vulnerability classified under CWE-639, found in the WordPress plugin 'Content No Cache' by giuse, which is designed to serve uncached partial content even on fully cached pages. The vulnerability exists in all versions up to and including 0.1.2 and is triggered via the eos_dyn_get_content action. Due to insufficient access control checks, unauthenticated attackers can exploit this flaw to retrieve content from posts that are password-protected, private, or in draft status—content that should normally be inaccessible without proper authorization. This occurs because the plugin does not adequately restrict which posts can be dynamically included and served uncached, effectively bypassing WordPress's native content access controls. The vulnerability impacts confidentiality by exposing sensitive or restricted content but does not affect data integrity or system availability. Exploitation requires no authentication or user interaction and can be performed remotely over the network. Although no public exploits have been reported, the ease of exploitation and the nature of the data exposed make this a significant concern for websites relying on this plugin. The CVSS v3.1 base score is 5.3, indicating a medium severity level. No patches or updates are currently linked, so users must monitor vendor announcements for fixes or apply workarounds.

The primary impact of CVE-2024-12103 is unauthorized disclosure of sensitive content, including password-protected, private, or draft posts on WordPress sites using the vulnerable 'Content No Cache' plugin. This can lead to leakage of confidential information, intellectual property, or sensitive business data, potentially damaging organizational reputation and violating privacy regulations. Since the vulnerability requires no authentication and no user interaction, attackers can automate exploitation at scale, increasing risk. Although it does not compromise data integrity or availability, the exposure of restricted content can facilitate further attacks such as social engineering or targeted phishing. Organizations relying on this plugin for content caching and delivery may inadvertently expose sensitive internal or customer data, undermining trust and compliance efforts. The impact is particularly critical for sites handling sensitive or proprietary information, including media companies, government entities, and enterprises with confidential content.

To mitigate CVE-2024-12103, organizations should first check for any official patches or updates from the plugin vendor and apply them promptly once available. In the absence of a patch, administrators should consider disabling the 'Content No Cache' plugin temporarily to prevent unauthorized data exposure. Review and restrict access permissions on sensitive posts and consider implementing additional access control mechanisms at the WordPress or server level to block unauthorized requests to the eos_dyn_get_content action. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting this plugin's endpoints. Regularly audit website content access logs for unusual activity indicative of exploitation attempts. Additionally, limit the exposure of sensitive content by avoiding the use of this plugin on sites with critical or confidential data until a fix is released. Monitoring threat intelligence feeds for any emerging exploits related to this vulnerability is also recommended.