CVE-2023-27416 in Decon WP SMS Plugin
Summary
by MITRE • 08/08/2023
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Decon Digital Decon WP SMS plugin <= 1.1 versions.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 09/01/2023
The CVE-2023-27416 vulnerability represents a critical security flaw in the Decon WP SMS plugin for WordPress platforms, specifically affecting versions 1.1 and earlier. This vulnerability falls under the category of stored cross-site scripting attacks, which occur when malicious scripts are injected into web applications and then executed in the context of other users who view the affected content. The vulnerability requires administrative privileges or higher access levels to exploit, making it particularly concerning for WordPress sites that maintain administrative accounts with elevated permissions. The Decon WP SMS plugin serves as a communication tool for sending SMS messages through WordPress, integrating with various SMS gateway services to facilitate automated notifications and alerts. The vulnerability's presence in this plugin creates a significant risk for organizations relying on WordPress for their digital infrastructure, as it allows attackers with administrative access to inject malicious code that can persist across user sessions.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization within the plugin's administrative interfaces. When administrators interact with the plugin's settings or message composition features, the system fails to properly sanitize user-supplied data before storing it in the database. This stored data is then subsequently rendered in the web interface without proper encoding or escaping mechanisms, creating the conditions for XSS exploitation. The vulnerability specifically targets the plugin's handling of user input in administrative contexts where trusted users might enter content that includes malicious script payloads. The stored nature of this vulnerability means that the malicious code persists in the database and executes whenever any user with appropriate privileges views the affected pages, potentially affecting multiple users over extended periods. This type of vulnerability is classified as CWE-79 according to the Common Weakness Enumeration standard, which specifically addresses cross-site scripting flaws in software applications.
The operational impact of CVE-2023-27416 extends beyond simple script execution, as it provides attackers with opportunities to escalate privileges and gain unauthorized access to sensitive system information. Once an attacker successfully injects malicious code through this vulnerability, they can potentially steal session cookies, redirect users to malicious sites, or execute arbitrary commands on the affected WordPress installation. The implications are particularly severe for organizations that use the Decon WP SMS plugin for sending sensitive notifications, as attackers could intercept and manipulate these communications. The vulnerability also enables potential data exfiltration attacks where malicious scripts could collect user credentials, personal information, or other sensitive data from the WordPress administration interface. Attackers could leverage this vulnerability to establish persistent access to the WordPress installation, making it a valuable tool for long-term compromise of web applications. According to the MITRE ATT&CK framework, this vulnerability aligns with techniques involving code injection and privilege escalation, potentially enabling attackers to move laterally within network environments.
Organizations affected by this vulnerability should immediately implement multiple layers of mitigation strategies to protect their WordPress installations. The primary recommendation involves upgrading to the latest version of the Decon WP SMS plugin where the vulnerability has been patched and properly addressed. System administrators should also implement input validation mechanisms at the application level to prevent unsanitized data from being stored in the database. Web application firewalls can provide additional protection by detecting and blocking suspicious script payloads before they can be executed. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other installed plugins and themes. The principle of least privilege should be enforced by limiting administrative access to only those users who absolutely require such permissions. Additionally, implementing Content Security Policy headers can provide browser-level protection against XSS attacks by restricting the sources from which scripts can be loaded. Organizations should also establish monitoring procedures to detect unusual activities in their WordPress installations that might indicate exploitation attempts. The vulnerability demonstrates the critical importance of maintaining up-to-date security practices and the necessity of comprehensive security testing for all components within WordPress environments. Regular updates and patch management procedures should be prioritized to prevent exploitation of known vulnerabilities that attackers can readily identify and target.