CVE-2024-35641 in Just Writing Statistics Plugin
Summary
by MITRE • 06/03/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in GregRoss Just Writing Statistics allows Stored XSS.This issue affects Just Writing Statistics: from n/a through 4.5.
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Analysis
by VulDB Data Team • 03/26/2025
This vulnerability represents a critical cross-site scripting flaw in the GregRoss Just Writing Statistics plugin for WordPress, specifically targeting versions ranging from an unspecified initial version through 4.5. The issue stems from improper input sanitization during web page generation processes, creating a persistent security weakness that allows attackers to inject malicious scripts into the application's output. The vulnerability is classified as a stored XSS attack vector, meaning that malicious payloads can be permanently stored on the server and executed whenever users access affected pages, making it particularly dangerous for widespread impact.
The technical implementation of this flaw occurs during the web page generation phase where user input is not adequately neutralized before being rendered in HTML output contexts. This failure to properly sanitize data allows attackers to submit malicious scripts through various input fields within the plugin's interface, which are then stored in the database and executed in the context of other users' browsers. The vulnerability directly maps to CWE-79, which defines Cross-Site Scripting as a weakness where untrusted data is used to generate web pages without proper validation or escaping, leading to script execution in the victim's browser.
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. Attackers can exploit this weakness to steal administrator credentials, modify content, inject malware, or establish persistent backdoors within the WordPress environment. The stored nature of the vulnerability means that once an attacker successfully injects malicious code, it will continue to affect all users who view the affected pages until the malicious content is removed from the database. This persistent characteristic makes the vulnerability particularly dangerous in multi-user environments where administrators and regular users may be exposed to the same malicious content.
Security mitigations for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data processing pipeline. The recommended approach involves sanitizing all user-provided input using proper escaping functions before storing or rendering any data in HTML contexts, with specific attention to the plugin's statistical data handling and display functions. Organizations should immediately update to the latest version of the Just Writing Statistics plugin where this vulnerability has been patched, while also implementing additional security measures such as web application firewalls, content security policies, and regular security audits. The vulnerability aligns with several ATT&CK techniques including T1566 for credential harvesting and T1190 for exploitation through web applications, making it a significant concern for organizations implementing comprehensive threat hunting and incident response protocols.