CVE-2023-25464 in Twitch Player Plugin
Summary
by MITRE • 04/07/2023
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in StreamWeasels Twitch Player plugin <= 2.1.0 versions.
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Analysis
by VulDB Data Team • 04/24/2023
The CVE-2023-25464 vulnerability represents a critical authentication bypass issue within the StreamWeasels Twitch Player plugin affecting versions up to 2.1.0. This stored cross-site scripting vulnerability specifically targets administrative users with privileges level of admin or higher, creating a significant security risk for WordPress environments. The vulnerability stems from insufficient input validation and output sanitization mechanisms within the plugin's administrative interface where user-supplied data is not properly escaped before being stored and subsequently rendered back to authenticated users. This flaw allows attackers with administrative access or those able to escalate privileges to inject malicious scripts into the plugin's configuration or content management areas.
The technical implementation of this vulnerability resides in the plugin's handling of user input within administrative contexts where stored data is later reflected in web pages without proper sanitization. When administrative users view pages containing the maliciously stored content, the injected scripts execute in their browser context, potentially enabling attackers to perform actions on behalf of the victim or extract sensitive information from the authenticated session. The stored nature of this vulnerability means that the malicious payload persists in the database and affects all users who view the affected pages, unlike reflected XSS which requires user interaction with a crafted link. This vulnerability directly maps to CWE-79 which defines Cross-Site Scripting as a weakness where untrusted data is sent to a web browser without proper validation or escaping, and aligns with ATT&CK technique T1566.001 for initial access through malicious content.
The operational impact of CVE-2023-25464 extends beyond simple script execution, as it provides attackers with potential access to administrative controls and sensitive data within the WordPress environment. An attacker could leverage this vulnerability to modify plugin settings, inject malicious content into streams, or even escalate privileges further within the WordPress installation. The vulnerability affects WordPress sites using the StreamWeasels Twitch Player plugin, which typically serve content related to twitch streaming integrations and may contain sensitive user information or stream configurations. Attackers exploiting this vulnerability could potentially manipulate stream player configurations, inject malicious advertisements, or redirect users to phishing sites, all while operating within the authenticated context of the administrative interface.
Mitigation strategies for CVE-2023-25464 should focus on immediate plugin updates to versions that address the stored XSS vulnerability, as well as implementing additional security measures such as input validation, output escaping, and regular security audits of plugin installations. Administrators should also consider implementing web application firewalls to detect and block malicious script injection attempts, and establish monitoring procedures to identify unauthorized modifications to plugin configurations. The vulnerability highlights the importance of keeping third-party plugins updated and following security best practices such as implementing the principle of least privilege, where administrative access is granted only to users who require it. Organizations should also conduct regular security assessments of their WordPress installations to identify similar vulnerabilities in other plugins or themes that may pose similar risks to their digital infrastructure.