CVE-2023-32965 in Jazz Popups Plugin
Summary
by MITRE • 07/18/2023
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in CRUDLab Jazz Popups plugin <= 1.8.7 versions.
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Analysis
by VulDB Data Team • 08/09/2023
The CVE-2023-32965 vulnerability represents a critical unauthenticated reflected cross-site scripting flaw discovered in the CRUDLab Jazz Popups WordPress plugin version 1.8.7 and earlier. This vulnerability resides within the plugin's handling of user input parameters, specifically in the way it processes and reflects data back to users without proper sanitization or output encoding mechanisms. The issue affects WordPress websites that have installed the affected plugin, creating a potential entry point for malicious actors to execute arbitrary JavaScript code within the context of a victim's browser session.
The technical implementation of this vulnerability stems from insufficient input validation and output escaping within the plugin's core functionality. When users interact with the plugin's interface or access specific endpoints, the application fails to properly sanitize user-supplied parameters before incorporating them into dynamic HTML responses. This reflected XSS condition occurs because the plugin directly echoes user input back to the browser without appropriate context-aware encoding, allowing attackers to inject malicious scripts that execute in the victim's browser when they view the affected page. The vulnerability is classified as reflected because the malicious payload is delivered via a crafted URL that, when accessed, causes the server to reflect the attacker's script back to the user agent.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the capability to hijack user sessions, steal sensitive information, manipulate website content, or redirect users to malicious sites. An attacker can craft a malicious URL containing JavaScript payloads that, when clicked by an authenticated user with appropriate privileges, could result in unauthorized actions being performed on behalf of that user. This includes potential privilege escalation, data theft, or modification of website content through the compromised user session. The vulnerability affects all users who have access to the affected plugin interface, making it particularly dangerous in multi-user environments where administrators and regular users may be targeted.
Mitigation strategies for CVE-2023-32965 should prioritize immediate plugin updates to versions that have addressed the reflected XSS vulnerability, as this represents the most direct and effective remediation approach. Organizations should also implement comprehensive input validation mechanisms, including the use of Content Security Policy headers to limit script execution, and ensure that all user-supplied data is properly encoded before being rendered in HTML contexts. Additionally, regular security audits of WordPress plugins and themes should be conducted to identify and remediate similar vulnerabilities, with particular attention to plugins that handle user input through URL parameters or form submissions. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and could potentially map to ATT&CK technique T1566.001 for initial access through malicious web content, emphasizing the importance of proper input sanitization and output encoding practices in web application security.