CVE-2025-53310 in HidePost Plugin
Summary
by MITRE • 06/27/2025
Cross-Site Request Forgery (CSRF) vulnerability in Funnnny HidePost allows Reflected XSS. This issue affects HidePost: from n/a through 2.3.8.
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Analysis
by VulDB Data Team • 06/27/2025
This vulnerability represents a critical security flaw in the Funnnny HidePost plugin that combines cross-site request forgery with reflected cross-site scripting attacks. The vulnerability exists within the HidePost plugin version range from an unspecified initial version through 2.3.8, creating a persistent security risk for WordPress installations that utilize this plugin. The combination of CSRF and XSS vulnerabilities creates a particularly dangerous attack vector where malicious actors can exploit the weakness to execute arbitrary scripts in the context of a victim's browser while simultaneously leveraging CSRF to perform unauthorized actions on behalf of authenticated users.
The technical implementation of this vulnerability stems from inadequate input validation and insufficient anti-CSRF token mechanisms within the plugin's request handling processes. When users interact with the plugin's functionality, the application fails to properly validate or sanitize user-supplied parameters that are subsequently reflected back in the response without appropriate encoding or sanitization measures. This creates an environment where malicious payloads can be injected and executed when legitimate users access compromised pages, particularly affecting the plugin's administrative interfaces and user-facing features that process external input.
The operational impact of this vulnerability extends beyond simple script execution, as it allows attackers to perform privileged actions within the context of authenticated users. An attacker could potentially manipulate the plugin's functionality to modify content, delete posts, alter user permissions, or gain access to sensitive administrative features. The reflected nature of the XSS component means that malicious payloads are immediately executed when users visit compromised pages, making this vulnerability particularly effective for drive-by attacks and social engineering campaigns. The vulnerability affects the entire plugin ecosystem, requiring immediate attention from WordPress administrators and security teams managing affected installations.
Mitigation strategies should focus on implementing robust input validation, output encoding, and comprehensive anti-CSRF token mechanisms throughout the plugin's codebase. Security professionals should ensure that all user-supplied inputs are properly sanitized and validated before being processed or reflected back to users. The implementation of proper CSRF tokens for all state-changing operations within the plugin is essential to prevent unauthorized actions. Additionally, administrators should immediately update to the latest available version of the HidePost plugin once a patched release becomes available, as the vulnerability affects multiple versions within the specified range. This vulnerability aligns with CWE-352 for CSRF and CWE-79 for XSS, representing a classic example of how insufficient input validation can create cascading security issues. The threat landscape for this vulnerability is further characterized by its potential alignment with ATT&CK technique T1566 for phishing and T1059 for command and scripting interpreter, as attackers can leverage these combined weaknesses to establish persistent access and execute malicious payloads.