CVE-2025-23476 in my-related-posts Plugin
Summary
by MITRE • 01/16/2025
Cross-Site Request Forgery (CSRF) vulnerability in isnowfy my-related-posts allows Stored XSS.This issue affects my-related-posts: from n/a through 1.1.
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Analysis
by VulDB Data Team • 02/10/2025
This vulnerability represents a critical security flaw in the isnowfy my-related-posts WordPress plugin that combines cross-site request forgery with stored cross-site scripting capabilities. The vulnerability exists in versions ranging from n/a through 1.1, indicating a widespread impact across multiple releases of the plugin. The flaw stems from inadequate validation and sanitization of user input within the plugin's administrative interfaces, creating a pathway for malicious actors to inject persistent malicious scripts into the plugin's data storage mechanisms.
The technical implementation of this vulnerability involves a CSRF attack vector that allows unauthorized modifications to the plugin's configuration or content storage areas. When legitimate administrators perform actions within the plugin's administrative interface, the malicious actor can manipulate the request parameters to inject XSS payloads that are then stored in the database. This stored XSS vulnerability occurs because the plugin fails to properly sanitize and validate input data before persisting it to the database, creating a persistent threat that affects all users who view the affected content.
The operational impact of this vulnerability extends beyond simple data corruption or theft, as it enables attackers to execute arbitrary JavaScript code within the context of authenticated administrator sessions. This creates a severe threat landscape where attackers can escalate privileges, modify plugin functionality, access sensitive data, and potentially compromise the entire WordPress installation. The vulnerability is particularly dangerous because it requires minimal user interaction beyond visiting a page containing the malicious content, making it an ideal candidate for automated exploitation campaigns.
Security professionals should note that this vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses, and CWE-79, which covers Cross-Site Scripting flaws. The attack pattern follows the TTPs outlined in the MITRE ATT&CK framework under the technique of Web Application Attack Surface, where adversaries exploit web application vulnerabilities to establish persistent access. Organizations should immediately implement mitigations including input validation, output encoding, and the implementation of anti-CSRF tokens throughout the plugin's administrative interfaces.
The remediation approach requires immediate patching of the affected plugin versions, with administrators verifying their current installation against the vulnerability scope. Additionally, implementing proper CSRF protection mechanisms such as anti-CSRF tokens, implementing Content Security Policy headers, and ensuring proper input sanitization and output encoding practices should be prioritized. Regular security audits of plugin installations and maintaining updated security configurations will help prevent similar vulnerabilities from being exploited in the future.