CVE-2025-60115 in Instapage Plugin
Summary
by MITRE • 09/26/2025
Cross-Site Request Forgery (CSRF) vulnerability in instapagedev Instapage Plugin allows Cross Site Request Forgery. This issue affects Instapage Plugin: from n/a through 3.5.12.
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Analysis
by VulDB Data Team • 09/26/2025
The CVE-2025-60115 vulnerability represents a critical cross-site request forgery flaw within the instapagedev Instapage Plugin, a widely used WordPress plugin for website building and marketing automation. This CSRF vulnerability stems from insufficient validation of request origins and lack of proper anti-CSRF token implementation within the plugin's administrative interfaces. The vulnerability affects all versions from the initial release through 3.5.12, indicating a long-standing security gap that has persisted across multiple iterations of the plugin's development lifecycle. The affected plugin serves thousands of websites, making this vulnerability particularly dangerous as it could potentially compromise numerous WordPress installations that rely on its functionality for page creation, form handling, and marketing automation features.
The technical implementation of this CSRF vulnerability occurs when authenticated administrators interact with the plugin's administrative endpoints without proper origin verification or token validation. Attackers can craft malicious web pages or emails that, when visited by an authenticated admin user, automatically submit requests to the vulnerable plugin's endpoints. This typically involves leveraging the admin's existing session cookies to perform unauthorized actions such as creating new pages, modifying form settings, changing plugin configurations, or executing administrative commands without the user's knowledge or consent. The vulnerability specifically targets the plugin's administrative interface where sensitive operations are performed, making it particularly dangerous for websites that use the plugin for critical marketing and conversion optimization activities.
The operational impact of this vulnerability extends beyond simple data modification, as it can lead to complete compromise of websites using the affected plugin. An attacker exploiting this CSRF vulnerability could gain persistent access to website content management systems, potentially leading to data exfiltration, website defacement, or the installation of malicious code. The vulnerability's scope increases significantly given that the Instapage Plugin is used for conversion optimization and marketing automation, meaning compromised websites could suffer from unauthorized lead generation, data theft, or malicious redirection of visitor traffic. Additionally, the vulnerability affects the plugin's ability to maintain secure administrative sessions, potentially enabling attackers to escalate privileges or perform actions that could affect the entire WordPress installation rather than just the plugin's functionality.
Security mitigations for this vulnerability should include immediate patching to version 3.5.13 or later, which addresses the missing CSRF protection mechanisms. Organizations should implement additional defensive measures such as network-level filtering to restrict access to plugin administrative endpoints, deployment of web application firewalls to detect and block suspicious requests, and regular security auditing of plugin installations. The vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery weaknesses in web applications, and represents a common pattern identified in the ATT&CK framework under T1190 for exploit public-facing application. Administrators should also consider implementing multi-factor authentication for administrative access, regular monitoring of plugin update activities, and maintaining detailed logs of administrative actions to detect potential exploitation attempts. The incident highlights the importance of proper input validation and anti-CSRF token implementation in web applications, particularly in plugins that handle sensitive administrative functions and user data processing.