CVE-2026-109388 in HivePress Plugin
Summary
by MITRE • 10/16/2026
The HivePress – Business Directory, Listings & Classified Ads Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'message' parameter in all versions up to, and including, 1.7.32 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the site administrator has enabled user listing submission, and the script executes in the victim's browser at the moment of successful login via the embedded form on the attacker's listing page.
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Analysis
by VulDB Data Team • 10/16/2026
The HivePress plugin for WordPress, widely utilized by businesses to create directory, listings, and classified ads websites, contains a critical security flaw identified as Stored Cross-Site Scripting within its messaging functionality. This vulnerability exists in all versions up through 1.7.32 and stems from insufficient input sanitization and output escaping mechanisms when processing the message parameter. The core technical issue lies in the application's failure to properly validate or encode user-supplied data before storing it in the database and subsequently rendering it back into HTML contexts without adequate protection against script injection. This architectural oversight allows malicious actors to embed executable JavaScript code directly into content that is later displayed to other users, turning legitimate communication channels into vectors for client-side attacks.
The operational impact of this vulnerability is significant because it enables authenticated attackers with subscriber-level access or higher privileges to inject arbitrary web scripts into pages accessible by other users. Unlike reflected XSS where the payload must be clicked via a link, stored XSS persists on the server side, meaning every user who views the compromised page will have their browser execute the malicious code automatically. The exploitation scenario is particularly insidious because it relies on social engineering tactics combined with specific site configurations. Attackers can craft deceptive listing pages that contain embedded forms designed to capture credentials or session tokens when a victim logs in through them. This execution occurs at the moment of successful login, potentially allowing attackers to hijack user sessions, steal sensitive data such as cookies and authentication tokens, or perform actions on behalf of the victim within the application context.
From an industry standards perspective, this vulnerability aligns with CWE-79, which classifies Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The specific mechanism involves stored payloads that persist in data stores and are served to multiple victims over time. In terms of the MITRE ATT&CK framework for enterprise security, this behavior maps to T1059 Command and Control scripting techniques used within web browsers, specifically leveraging JavaScript execution capabilities (T1059.007). Furthermore, the requirement for authenticated access places it under privilege escalation vectors where lower-privileged users exploit application logic flaws to achieve higher impact outcomes, potentially leading to account takeover or data exfiltration if combined with other vulnerabilities like session fixation or cross-site request forgery weaknesses in form handling processes.
Mitigation strategies must address both immediate remediation and long-term defensive posture improvements. The primary solution is for administrators of affected sites to upgrade the HivePress plugin to version 1.7.33 or later, where these input validation and output encoding issues have been resolved by the developers. For organizations unable to patch immediately due to compatibility constraints, implementing a Web Application Firewall with rules specifically targeting XSS patterns in message parameters can provide temporary protection against exploitation attempts. Additionally, enforcing strict Content Security Policy headers that restrict script execution sources can mitigate the impact of any successfully injected scripts by preventing them from loading external resources or executing inline code unless explicitly whitelisted. Regular security audits focusing on input sanitization and output escaping across all user-facing forms are essential to prevent similar vulnerabilities in future updates or custom integrations within the WordPress ecosystem.