CVE-2024-30192 in GS Pins for Pinterest Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in GS Plugins GS Pins for Pinterest allows Stored XSS.This issue affects GS Pins for Pinterest: from n/a through 1.8.2.
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Analysis
by VulDB Data Team • 06/30/2025
This vulnerability represents a critical cross-site scripting flaw in the GS Pins for Pinterest plugin, specifically targeting the web page generation process where input validation and sanitization mechanisms fail to properly neutralize malicious user data. The stored nature of this vulnerability means that malicious scripts can be permanently injected into the plugin's database and subsequently executed whenever affected pages are rendered to users, creating a persistent threat vector that can compromise multiple visitors over time. The vulnerability exists within the plugin's handling of user-submitted content that gets processed and displayed on web pages, allowing attackers to inject malicious javascript code that executes in the context of other users' browsers.
The technical implementation of this flaw stems from inadequate input sanitization routines within the plugin's codebase, where user-generated content such as pin descriptions, titles, or metadata fields are not properly escaped or filtered before being stored and subsequently rendered in web pages. This failure aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities arising from improper neutralization of input during web page generation. The vulnerability affects all versions of the plugin up to and including version 1.8.2, indicating that the security flaw was present for an extended period without proper remediation. Attackers can exploit this weakness by submitting malicious payloads through the plugin's input fields, which are then stored in the database and executed whenever the affected pages are accessed by other users.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities including session hijacking, credential theft, data exfiltration, and redirection to malicious sites. The stored XSS nature means that the attack persists even after the initial injection, making it particularly dangerous for websites that rely on user-generated content or that have multiple visitors over time. This vulnerability can be leveraged to compromise user sessions, steal sensitive information from authenticated users, or even escalate privileges within the affected WordPress environment. The attack vector typically involves crafting malicious input that contains javascript code, which gets stored in the plugin's database and executed in the context of other users' browsers when they view the affected content.
Organizations and website administrators should immediately prioritize patching this vulnerability by updating to the latest version of the GS Pins for Pinterest plugin where the XSS flaw has been addressed through proper input sanitization and output encoding mechanisms. The mitigation strategy should also include implementing additional security layers such as web application firewalls that can detect and block malicious input patterns, regular security scanning of plugin files for unauthorized modifications, and monitoring user-generated content for suspicious patterns. Security teams should also consider implementing content security policies to limit the execution of inline scripts and restrict the sources from which scripts can be loaded. This vulnerability demonstrates the critical importance of proper input validation and output encoding in web applications, as outlined in the OWASP Top Ten security principles and aligns with ATT&CK technique T1059.007 for scripting and T1566 for credential access through malicious content delivery, emphasizing the need for comprehensive security measures beyond simple patch management to protect against persistent threats.