CVE-2026-14592 in Real IP-based Access Control Plugin
Summary
by MITRE • 07/30/2026
The WP Real IP-based Access Control WordPress plugin through 1.3.1 does not perform any capability or nonce checks before storing one of its option values, and does not escape that value on output on its settings page, allowing unauthenticated users to store arbitrary JavaScript that executes in the context of any administrator who views the page.
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability exists in the WP Real IP-based Access Control WordPress plugin version 1.3.1 and earlier, representing a critical security flaw that combines multiple dangerous conditions to enable persistent cross-site scripting attacks. The plugin fails to implement proper authentication checks before processing option value storage operations, creating an entry point for unauthenticated attackers to inject malicious content into the plugin's configuration settings. The vulnerability stems from inadequate input validation and sanitization practices within the plugin's administrative interface, where user-supplied data is directly stored without proper capability verification or nonce enforcement.
The technical implementation of this flaw allows attackers to manipulate the plugin's settings page by injecting arbitrary JavaScript code through the option value storage mechanism. When administrators view the plugin's settings page, the malicious script executes in their browser context with full administrative privileges, effectively enabling attacker-controlled code execution within the WordPress administration environment. This represents a classic persistent cross-site scripting vulnerability that leverages the trust relationship between administrators and the web application to escalate privileges and execute arbitrary commands.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with complete control over the affected WordPress installation through the administrator's browser session. Attackers can leverage this privilege escalation to modify plugin configurations, access sensitive data, create or modify user accounts, upload malicious files, or even install additional malware. The vulnerability is particularly dangerous because it requires no authentication to exploit and can persist indefinitely until the malicious code is manually removed from the plugin settings.
From a security standards perspective, this vulnerability maps directly to CWE-79 "Cross-site Scripting" and CWE-352 "Cross-Site Request Forgery" categories, with potential ATT&CK framework mappings to T1059.007 "Command and Scripting Interpreter: JavaScript" and T1548.002 "Abuse Elevation Control Mechanism: Bypass UAC". The lack of capability checks violates fundamental security principles of least privilege and proper access control enforcement, while the failure to escape output on display represents a classic XSS exploitation vector that can be chained with other attack vectors.
Mitigation strategies should focus on immediate plugin updates to versions that properly implement nonce verification and capability checks before storing option values. Administrators must ensure that all WordPress plugins are kept current with security patches, as this vulnerability demonstrates the critical importance of maintaining up-to-date software components. Additional protective measures include implementing network-level restrictions to limit access to administrative interfaces, using strong authentication mechanisms such as two-factor authentication, and monitoring plugin configuration changes for unauthorized modifications. Security professionals should also consider implementing web application firewalls to detect and block suspicious parameter injection attempts targeting WordPress plugin endpoints.