CVE-2024-1479 in WP Show Posts Plugin
Summary
by MITRE • 03/13/2024
The WP Show Posts plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.1.4 via the wpsp_display function. This makes it possible for authenticated attackers with contributor access and above to view the contents of draft, trash, future, private and pending posts and pages.
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Analysis
by VulDB Data Team • 03/06/2025
The WP Show Posts plugin for WordPress presents a critical security vulnerability classified as CVE-2024-1479, affecting all versions through 1.1.4. This vulnerability stems from insufficient access control mechanisms within the plugin's wpsp_display function, which fails to properly validate user permissions when retrieving and displaying post content. The flaw specifically targets the plugin's ability to handle sensitive post statuses including drafts, trash, future posts, private content, and pending publications. Attackers exploiting this vulnerability can gain unauthorized access to content that should remain restricted to authorized users only, fundamentally undermining the content management system's security model.
The technical implementation of this vulnerability resides in the wpsp_display function's failure to enforce WordPress's built-in post status and permission checks. When an authenticated user with contributor privileges or higher attempts to access content through this function, the system does not adequately verify whether the requesting user has proper authorization to view the specific post status. This represents a direct violation of the principle of least privilege and demonstrates a classic access control flaw that aligns with CWE-285, which addresses insufficient access control mechanisms. The vulnerability essentially allows privilege escalation through content exposure, enabling attackers to bypass WordPress's inherent content visibility controls.
The operational impact of CVE-2024-1479 extends beyond simple information disclosure, as it provides attackers with access to unpublished content that may contain sensitive business information, strategic plans, confidential communications, or other proprietary data. This exposure affects not only the immediate content but also potentially compromises the integrity of the entire WordPress installation by enabling attackers to gather intelligence about upcoming releases, internal processes, or organizational structures. The vulnerability particularly affects organizations that rely heavily on WordPress for content management, as it allows unauthorized individuals to access content that should remain private until publication. From an adversarial perspective, this vulnerability fits within ATT&CK technique T1213.002 for Data from Information Repositories, as it enables unauthorized access to stored content.
Organizations should immediately update to the latest version of the WP Show Posts plugin to address this vulnerability, as no effective workarounds exist for the underlying access control flaw. System administrators should implement monitoring for unauthorized access attempts and consider implementing additional security measures such as role-based access controls and content filtering. The vulnerability also highlights the importance of regular security audits and vulnerability assessments of third-party plugins, as this flaw demonstrates how seemingly minor implementation issues can lead to significant security breaches. Security teams should also review their incident response procedures to ensure proper handling of information exposure events and consider implementing automated patch management systems to prevent similar vulnerabilities from remaining unaddressed in production environments.