CVE-2024-1516 in WP eCommerce Plugin
Summary
by MITRE • 02/28/2024
The WP eCommerce plugin for WordPress is vulnerable to unauthorized arbitrary post creation due to a missing capability check on the check_for_saas_push() function in all versions up to, and including, 3.15.1. This makes it possible for unauthenticated attackers to create arbitrary posts with arbitrary content.
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Analysis
by VulDB Data Team • 02/12/2025
The WP eCommerce plugin represents a widely used e-commerce solution for WordPress platforms, serving thousands of online stores worldwide. This particular vulnerability exists within the plugin's core functionality where the check_for_saas_push() function fails to properly validate user permissions before executing post creation operations. The flaw stems from a critical missing capability check that allows any unauthenticated user to bypass normal WordPress authorization mechanisms and directly invoke the post creation process. This vulnerability affects all plugin versions up to and including 3.15.1, indicating a long-standing security gap that has remained unaddressed for an extended period within the codebase.
The technical implementation of this vulnerability exploits the absence of proper authentication verification within the SaaS integration functionality of the plugin. When the check_for_saas_push() function is invoked, it does not verify whether the requesting user possesses the necessary capabilities to create posts, specifically the edit_posts capability that should be required for such operations. This missing validation creates a direct pathway for malicious actors to submit crafted requests that result in unauthorized content creation. The vulnerability operates at the application layer and leverages the inherent trust placed in the plugin's internal functions, making it particularly dangerous as it requires no prior authentication credentials or administrative access to exploit.
The operational impact of this vulnerability extends beyond simple content manipulation, as it provides attackers with the ability to inject arbitrary posts containing malicious content, spam, or potentially harmful links. Unauthenticated attackers can leverage this flaw to flood the target website with unwanted posts, potentially causing denial of service conditions or degrading the site's usability. The vulnerability also creates opportunities for attackers to establish persistent footholds within the WordPress environment by creating posts that contain malware or phishing content. This capability directly violates fundamental security principles of least privilege and access control, as it allows unrestricted post creation regardless of user authentication status.
Security professionals should immediately implement mitigation strategies including immediate plugin updates to versions that address this vulnerability, as well as network-level restrictions to prevent unauthorized access to the plugin's endpoints. The vulnerability aligns with CWE-863, which describes "Incorrect Authorization," and represents a clear violation of the principle that all access requests must be properly authenticated and authorized before executing privileged operations. From an ATT&CK framework perspective, this vulnerability maps to T1059.001 for command and scripting interpreter and T1566 for phishing, as attackers can use the created posts for further malicious activities. Organizations should also consider implementing web application firewalls to monitor and block suspicious post creation requests, while conducting thorough security audits to identify any posts created through this vulnerability. The incident highlights the critical importance of proper capability checks in web applications and demonstrates how seemingly isolated functionality can create significant security risks when access controls are improperly implemented.