CVE-2026-65562 in BetterDocs Plugin
Summary
by MITRE • 07/27/2026
Contributor Cross Site Scripting (XSS) in BetterDocs <= 4.6.2 versions.
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Analysis
by VulDB Data Team • 07/27/2026
The vulnerability identified as Contributor Cross Site Scripting in BetterDocs plugin affects versions up to and including 4.6.2, representing a significant security weakness that allows unauthenticated attackers to inject malicious scripts into the plugin's functionality. This issue stems from insufficient input validation and output sanitization within the plugin's contributor management features, where user-supplied data is not properly escaped before being rendered in web pages. The vulnerability exists in the plugin's handling of contributor-related parameters that are processed without adequate security measures, creating an opportunity for attackers to exploit this weakness through crafted malicious inputs.
The technical flaw manifests when contributors or unauthorized users submit content containing malicious script payloads through various input fields within the BetterDocs plugin interface. These payloads can include javascript code, html tags, or other malicious constructs that are executed in the browsers of legitimate users who view the affected pages. The vulnerability specifically affects how the plugin processes and displays contributor information, allowing attackers to inject scripts that can execute in the context of the victim's browser session. This type of vulnerability falls under the CWE-79 category for Cross Site Scripting, which is classified as a critical weakness in web application security.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform various malicious activities including but not limited to session hijacking, credential theft, redirection to malicious sites, and data exfiltration from authenticated users. When exploited successfully, an attacker could gain access to contributor accounts with elevated privileges, potentially leading to unauthorized modifications of documentation content or even complete compromise of the WordPress site if the contributors have administrative capabilities. The vulnerability affects all users who interact with the plugin's contributor features, making it particularly dangerous as it can be exploited by anyone with access to the plugin interface.
Mitigation strategies for this vulnerability should include immediate patching to versions 4.6.3 and later where the XSS issues have been resolved through proper input sanitization and output escaping mechanisms. Administrators should also implement additional security measures such as content security policies to limit script execution, regular security audits of plugin installations, and monitoring for suspicious contributor activities. The ATT&CK framework categorizes this vulnerability under T1059.007 for Scripting with the specific technique of "Command and Scripting Interpreter: JavaScript' which aligns with how attackers would exploit this XSS weakness to execute malicious javascript code. Organizations should also consider implementing web application firewalls to detect and block suspicious script injection attempts, as well as conducting regular penetration testing to identify similar vulnerabilities in their WordPress installations. The vulnerability highlights the critical importance of proper input validation and output encoding practices in web development, particularly for plugins that handle user-contributed content in WordPress environments where security can be easily compromised through seemingly minor coding oversights.