CVE-2025-9030 identifies a stored Cross-Site Scripting (XSS) vulnerability in the Majestic Before After Image plugin for WordPress, specifically in versions 2.0.1 and earlier. The vulnerability stems from insufficient sanitization and escaping of user-supplied input in the 'before_label' and 'after_label' parameters. Authenticated users with contributor-level permissions or higher can exploit this flaw by injecting arbitrary JavaScript code into these parameters. Because the injected script is stored persistently, it executes in the context of any user who views the affected page, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of users. The vulnerability does not require user interaction beyond page access and does not impact availability but compromises confidentiality and integrity. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N) reflects network exploitable, low attack complexity, requiring privileges but no user interaction, with limited confidentiality and integrity impact and no availability impact. No public exploits are currently known, and no official patch links are provided yet. The vulnerability was published in October 2025 and assigned by Wordfence. Given the plugin’s usage in WordPress environments, the attack surface includes websites that allow contributor-level user input and use this plugin for image comparisons.

For European organizations, this vulnerability poses a moderate risk primarily to websites using WordPress with the affected plugin installed. Exploitation could lead to unauthorized script execution in users’ browsers, enabling theft of session cookies, defacement, or redirection to malicious sites. This can damage organizational reputation, lead to data breaches, and facilitate further attacks such as privilege escalation or lateral movement. Organizations relying on contributor-level user roles for content management are particularly vulnerable, as attackers need such access to exploit the flaw. The impact is more pronounced for public-facing websites with high traffic, including e-commerce, news portals, and corporate sites. GDPR considerations also apply, as exploitation could lead to personal data exposure, triggering regulatory penalties. The absence of known exploits reduces immediate risk but does not eliminate it, especially as attackers may develop exploits once patches are released. The medium CVSS score reflects a balance between the required privileges and the potential impact on confidentiality and integrity.

1. Monitor for official patches from the plugin vendor and apply updates promptly once available. 2. Until patched, restrict contributor-level permissions to trusted users only, minimizing the risk of malicious input. 3. Implement Web Application Firewall (WAF) rules to detect and block suspicious script injection patterns targeting the 'before_label' and 'after_label' parameters. 4. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on affected pages. 5. Conduct regular security audits and code reviews of plugins and custom code to identify similar input validation weaknesses. 6. Use security plugins that provide input sanitization and output encoding enhancements for WordPress. 7. Educate content contributors about safe input practices and the risks of injecting scripts. 8. Consider temporarily disabling or replacing the vulnerable plugin if immediate patching is not feasible. 9. Monitor logs for unusual activity related to the affected parameters or user roles. 10. Ensure backup and incident response plans are in place to quickly recover from potential exploitation.