CVE-2025-53330 in WP Rentals Plugin
Summary
by MITRE • 08/14/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WpEstate WP Rentals allows Stored XSS. This issue affects WP Rentals: from n/a through 3.13.1.
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Analysis
by VulDB Data Team • 08/14/2025
The vulnerability identified as CVE-2025-53330 represents a critical cross-site scripting flaw within the WpEstate WP Rentals plugin, specifically manifesting as a stored XSS vulnerability that enables attackers to inject malicious scripts into web pages viewed by other users. This weakness occurs during the web page generation process where input data fails to be properly sanitized or neutralized before being rendered in the user interface, creating a persistent security risk that can affect all versions from the initial release through version 3.13.1.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the plugin's codebase. When users submit data through various forms or input fields within the WP Rentals interface, the system does not sufficiently sanitize this data before storing it in the database or rendering it in subsequent web pages. This failure creates an environment where malicious scripts can be persisted and executed whenever legitimate users access pages containing the compromised data. The vulnerability specifically affects the web page generation process where user-supplied content is incorporated into dynamic HTML output without proper security measures.
From an operational perspective, this stored XSS vulnerability presents significant risks to both administrators and end-users of the WP Rentals platform. Attackers can exploit this weakness to inject malicious JavaScript code that executes in the context of other users' browsers, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of victims. The persistent nature of stored XSS means that once the malicious payload is injected, it will continue to affect users until the compromised data is removed from the system, making it particularly dangerous for content management systems where user-generated content is common.
The impact of this vulnerability extends beyond immediate security breaches to encompass broader threats to system integrity and user trust. Organizations relying on WP Rentals for property management and listing services face potential data compromise, service disruption, and reputational damage if this vulnerability is exploited. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, and maps to ATT&CK technique T1566.001 for initial access through malicious web content. Security professionals should consider this vulnerability as part of a broader attack chain where compromised web applications serve as entry points for more sophisticated attacks.
Mitigation strategies for CVE-2025-53330 should prioritize immediate remediation through plugin updates to versions that address the XSS vulnerability. Organizations must implement comprehensive input validation and output encoding mechanisms to prevent malicious data from being stored or executed within the application. Regular security audits of user input processing and web page generation functions should be conducted to identify similar vulnerabilities. Additionally, implementing content security policies and using web application firewalls can provide additional layers of protection against exploitation attempts. The vulnerability demonstrates the critical importance of proper input sanitization and output encoding in preventing XSS attacks, with implications for all web applications that process user-supplied content.