CVE-2025-28860 in Google News Editors Picks Feed Generator Plugin
Summary
by MITRE • 03/11/2025
Cross-Site Request Forgery (CSRF) vulnerability in PPDPurveyor Google News Editors Picks Feed Generator allows Stored XSS. This issue affects Google News Editors Picks Feed Generator: from n/a through 2.1.
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Analysis
by VulDB Data Team • 03/12/2025
This vulnerability represents a critical security flaw in the PPDPurveyor Google News Editors Picks Feed Generator plugin that combines cross-site request forgery with stored cross-site scripting capabilities. The vulnerability exists within the plugin's handling of user input and form submissions, creating a pathway for attackers to execute malicious scripts in the context of authenticated users' browsers. The issue specifically affects versions ranging from an unspecified starting point through version 2.1, indicating a potentially wide attack surface across multiple iterations of the plugin.
The technical exploitation occurs through a CSRF vector that enables an attacker to manipulate the plugin's feed generation functionality. When users interact with the affected plugin, particularly when submitting or modifying content through web forms, the system fails to properly validate or sanitize user-supplied data. This validation gap allows malicious input to be stored within the system's database or configuration files, creating a persistent vulnerability that manifests as stored XSS when legitimate users view the compromised content. The vulnerability's classification as a stored XSS attack means that the malicious script is executed every time the affected page is loaded, rather than requiring a specific user action to trigger the payload.
The operational impact of this vulnerability extends beyond simple script execution, as it allows attackers to perform unauthorized actions on behalf of authenticated users. This includes but is not limited to modifying feed content, injecting malicious advertisements, redirecting users to phishing sites, or potentially extracting sensitive information from the user's browser session. The combination of CSRF and XSS creates a particularly dangerous attack vector because the initial CSRF attack can establish the malicious payload, while the stored XSS ensures persistent execution without requiring repeated user interaction. This vulnerability directly aligns with CWE-352, which specifically addresses cross-site request forgery vulnerabilities, and CWE-79, which covers cross-site scripting flaws.
Security professionals should immediately implement mitigations including input validation and output sanitization measures, proper implementation of anti-CSRF tokens, and comprehensive review of all user input handling mechanisms within the affected plugin. The ATT&CK framework categorizes this vulnerability under T1566 for initial access through web application attacks, and potentially T1059 for command and scripting interpreter usage. Organizations should also consider implementing web application firewalls to detect and block suspicious requests targeting the vulnerable plugin endpoints. The vulnerability demonstrates the importance of proper security testing during plugin development and the need for robust input validation across all user-facing interfaces. Regular security audits and keeping plugins updated to the latest secure versions should be mandatory practices to prevent exploitation of similar vulnerabilities in the future.
The broader implications of this vulnerability highlight the critical need for security by design principles in web application development, particularly when dealing with user-generated content and administrative interfaces. The vulnerability serves as a reminder that seemingly simple plugin functionalities can introduce complex security risks when proper validation and sanitization measures are not implemented. Organizations should also consider implementing security training for developers to understand the specific risks associated with CSRF and XSS vulnerabilities, as well as establishing automated security testing processes that can identify these issues during the development lifecycle rather than after deployment.