CVE-2025-11820 is a stored cross-site scripting (XSS) vulnerability identified in the Graphina – Charts and Graphs plugin for Elementor, a popular WordPress plugin used to create interactive charts and graphs. The vulnerability arises from improper neutralization of input during web page generation (CWE-79), specifically due to insufficient sanitization and escaping of data attributes in multiple chart widgets. This flaw allows authenticated attackers with Contributor-level or higher privileges to inject arbitrary JavaScript code into pages containing affected widgets, including Area Chart, Line Chart, Column Chart, Donut Chart, Heatmap Chart, Radar Chart, Polar Chart, Pie Chart, Radial Chart, and Advanced Data Table widgets. When other users visit these compromised pages, the injected scripts execute in their browsers, potentially enabling session hijacking, credential theft, or unauthorized actions within the context of the victim’s session. The vulnerability affects all versions up to and including 3.1.8 of the plugin. The CVSS v3.1 base score is 6.4, indicating a medium severity with network attack vector, low attack complexity, requiring privileges (Contributor or higher), no user interaction, and a scope change. No public exploits are currently known, but the vulnerability’s presence in a widely used WordPress plugin makes it a notable risk. The vulnerability was published on November 5, 2025, and no official patches or updates have been linked yet. The issue is particularly critical in multi-user WordPress environments where contributors can add or modify content, as it enables persistent XSS attacks that can affect all visitors to the infected pages.

The impact of CVE-2025-11820 is significant for organizations using the Graphina plugin in WordPress environments with multiple authenticated users. Successful exploitation allows attackers to inject persistent malicious scripts that execute in the browsers of any user viewing the affected pages. This can lead to session hijacking, theft of sensitive information such as cookies or credentials, unauthorized actions performed on behalf of users, and potential spread of malware. Since the vulnerability requires Contributor-level access, it poses a risk primarily in environments where multiple users have content creation privileges, such as corporate blogs, news sites, or community portals. The scope change indicated in the CVSS vector means the vulnerability can affect resources beyond the attacker’s privileges, increasing the risk. Although no known exploits are currently in the wild, the widespread use of WordPress and Elementor, combined with the popularity of the Graphina plugin, means many organizations worldwide could be affected if attackers develop exploit code. The vulnerability does not directly affect availability but compromises confidentiality and integrity of user sessions and data.

To mitigate CVE-2025-11820, organizations should immediately restrict Contributor-level access to trusted users only and review existing user privileges to minimize risk exposure. Administrators should monitor and audit content created or modified by contributors for suspicious scripts or anomalies. Until an official patch is released, consider disabling or removing the Graphina plugin if it is not essential. If removal is not feasible, implement web application firewall (WAF) rules to detect and block suspicious payloads targeting the affected chart widgets’ data attributes. Employ Content Security Policy (CSP) headers to restrict script execution sources and reduce the impact of injected scripts. Regularly update WordPress core, Elementor, and all plugins to their latest versions once patches addressing this vulnerability become available. Additionally, educate content contributors about safe input practices and the risks of injecting untrusted code. Conduct penetration testing focused on XSS vectors in multi-user environments to identify any residual risks.