CVE-2025-6686 is a stored cross-site scripting vulnerability classified under CWE-79, found in the Magic Buttons for Elementor plugin for WordPress. This plugin allows users to add customizable buttons via a shortcode mechanism. The vulnerability exists because the plugin fails to properly sanitize and escape user-supplied attributes in the magic-button shortcode, allowing authenticated users with contributor-level permissions or higher to inject arbitrary JavaScript code. When a page containing the malicious shortcode is viewed, the injected script executes in the context of the victim's browser, potentially leading to session hijacking, defacement, or other malicious actions. The vulnerability affects all versions up to and including 1.0. The CVSS 3.1 base score is 6.4, indicating medium severity, with an attack vector over the network, low attack complexity, requiring privileges (contributor or above), no user interaction, and a scope change. The impact affects confidentiality and integrity but not availability. No patches or fixes are currently linked, and no known exploits have been reported in the wild. The vulnerability is particularly concerning in multi-user WordPress environments where contributors can add content but are not fully trusted. Exploitation does not require user interaction, increasing risk. Mitigation requires either patching when available or applying strict input validation and output encoding on shortcode attributes. Additionally, limiting contributor permissions and monitoring content changes can reduce risk.

The primary impact of CVE-2025-6686 is the potential for attackers with contributor-level access to inject persistent malicious scripts into WordPress pages, which execute in the browsers of any users visiting those pages. This can lead to theft of session cookies, unauthorized actions performed on behalf of users, defacement, or distribution of malware. Confidentiality and integrity of user data and site content are at risk, although availability is not directly affected. Organizations with multiple content contributors, such as media companies, educational institutions, and large enterprises using WordPress, face increased risk. The vulnerability could be leveraged to escalate privileges or move laterally within the environment if combined with other vulnerabilities. The lack of user interaction requirement and network exploitability make it easier for attackers to exploit once they have contributor access. Although no known exploits are currently reported, the medium severity score suggests that attackers may develop exploits, especially in high-value targets. The impact extends to the reputation of affected organizations and potential regulatory consequences if user data is compromised.

1. Monitor for and apply any official patches or updates from the rexdot Magic Buttons for Elementor plugin as soon as they become available. 2. Until a patch is released, restrict contributor-level permissions to trusted users only, minimizing the risk of malicious shortcode injection. 3. Implement a Web Application Firewall (WAF) with rules to detect and block suspicious shortcode attribute inputs containing script tags or event handlers. 4. Use security plugins that sanitize shortcode inputs or disable the magic-button shortcode if not essential. 5. Conduct regular content audits to identify and remove any injected malicious scripts. 6. Educate content contributors about safe content practices and the risks of injecting untrusted code. 7. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on the website. 8. Harden WordPress installations by disabling unnecessary plugins and limiting plugin usage to trusted sources. 9. Monitor logs for unusual contributor activity or content changes that could indicate exploitation attempts. 10. Consider implementing role-based access controls that further restrict shortcode usage or editing capabilities.