CVE-2025-24686 Overview
CVE-2025-24686 is a reflected cross-site scripting (XSS) vulnerability in the Metagauss RegistrationMagic plugin for WordPress. The flaw stems from improper neutralization of user input during web page generation, classified under [CWE-79]. It affects all versions of the custom-registration-form-builder-with-submission-manager plugin up to and including 6.0.3.3. Attackers exploit the vulnerability by tricking authenticated or unauthenticated users into clicking a crafted link that injects script content into the rendered page. Successful exploitation allows execution of attacker-controlled JavaScript in the victim's browser session within the WordPress site's origin.
Critical Impact
Reflected XSS enables session hijacking, credential theft, and unauthorized actions against WordPress administrators who interact with malicious links targeting RegistrationMagic endpoints.
Affected Products
- Metagauss RegistrationMagic (custom-registration-form-builder-with-submission-manager) versions up to and including 6.0.3.3
- WordPress installations with the RegistrationMagic plugin enabled
- Any site administrator or user accounts interacting with vulnerable plugin endpoints
Discovery Timeline
- 2025-01-31 - CVE-2025-24686 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-24686
Vulnerability Analysis
The vulnerability resides in RegistrationMagic's handling of request parameters that are reflected into HTTP responses without proper output encoding or sanitization. When a user visits a URL containing attacker-supplied input, the plugin echoes that input into the resulting HTML page. The browser interprets the injected content as executable script within the WordPress site's origin. Because the payload is delivered per-request rather than stored, exploitation requires user interaction — typically a crafted link delivered through phishing, forum posts, or malicious advertising.
The attack scope extends beyond the vulnerable component because injected scripts execute in the context of the parent WordPress site. An attacker can read cookies not marked HttpOnly, submit forms on behalf of the victim, or pivot to administrative functions if the victim holds elevated privileges.
Root Cause
The root cause is missing or insufficient output encoding for user-controllable input reflected in server responses. The plugin fails to apply WordPress escaping functions such as esc_html(), esc_attr(), or wp_kses() before rendering request data back to the browser. This violates the standard WordPress secure coding practice of escaping late and escaping context-appropriately.
Attack Vector
Exploitation requires network access and user interaction. An attacker constructs a URL targeting a vulnerable RegistrationMagic parameter and appends a JavaScript payload. The victim is lured into clicking the link, which triggers the reflection and executes the payload. No authentication is required to craft the malicious URL, but the impact scales with the privileges of the victim who clicks it. Refer to the Patchstack advisory for parameter-level detail.
Detection Methods for CVE-2025-24686
Indicators of Compromise
- Web server access logs containing RegistrationMagic request URIs with encoded <script>, onerror=, javascript:, or onload= payloads in query parameters
- Unusual outbound requests from administrator browsers to attacker-controlled domains shortly after visiting plugin URLs
- Unexpected creation of WordPress administrator accounts or modification of user roles following link interactions
Detection Strategies
- Inspect HTTP request logs for query strings targeting RegistrationMagic endpoints that contain HTML tags, event handlers, or URL-encoded script fragments
- Deploy a Web Application Firewall (WAF) rule matching reflected XSS signatures against the plugin's request paths
- Correlate referrer headers on WordPress admin sessions with external domains delivering crafted links
Monitoring Recommendations
- Enable and forward WordPress and web server logs to a centralized SIEM for query-parameter inspection
- Alert on administrator account changes, plugin modifications, and settings updates that follow anomalous URL access patterns
- Monitor browser Content Security Policy (CSP) violation reports for the WordPress origin
How to Mitigate CVE-2025-24686
Immediate Actions Required
- Update Metagauss RegistrationMagic to a version later than 6.0.3.3 as soon as a patched release is available from the vendor
- Restrict administrative access to trusted IP ranges to reduce phishing exposure for privileged accounts
- Educate WordPress administrators to avoid clicking untrusted links referencing plugin URLs
Patch Information
The vulnerability affects RegistrationMagic through version 6.0.3.3. Site owners should consult the Patchstack advisory and the WordPress plugin repository for the current fixed release. Apply the update in a staging environment before pushing to production.
Workarounds
- Deploy a WAF rule to block requests to RegistrationMagic endpoints containing HTML tags or JavaScript event handlers in query parameters
- Enforce a strict Content Security Policy on the WordPress site to limit inline script execution
- Disable the RegistrationMagic plugin until a patched version is installed if the plugin is not business-critical
# Example WAF rule (ModSecurity) blocking reflected XSS patterns against the plugin
SecRule REQUEST_URI "@contains /wp-admin/admin.php" \
"chain,phase:2,deny,status:403,id:1024686,msg:'Reflected XSS attempt against RegistrationMagic (CVE-2025-24686)'"
SecRule ARGS "@rx (?i)(<script|onerror=|onload=|javascript:)" "t:urlDecodeUni,t:htmlEntityDecode"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
