CVE-2025-4957 Overview
CVE-2025-4957 is a reflected cross-site scripting (XSS) vulnerability in the Metagauss ProfileGrid WordPress plugin (profilegrid-user-profiles-groups-and-communities). The flaw affects all versions up to and including 5.9.5.7. The plugin fails to properly neutralize user-supplied input during web page generation, allowing attackers to inject malicious scripts into responses rendered by the victim's browser. The issue is tracked under CWE-79 and requires user interaction such as clicking a crafted link. Successful exploitation can lead to session hijacking, credential theft, or unauthorized actions performed in the context of the targeted user.
Critical Impact
Attackers can execute arbitrary JavaScript in a victim's browser session by tricking authenticated WordPress users into clicking a crafted URL, enabling account takeover and unauthorized administrative actions.
Affected Products
- Metagauss ProfileGrid – User Profiles, Groups and Communities WordPress plugin
- All versions from initial release through 5.9.5.7
- WordPress sites with the vulnerable plugin installed and activated
Discovery Timeline
- 2025-09-26 - CVE-2025-4957 published to the National Vulnerability Database (NVD)
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-4957
Vulnerability Analysis
The vulnerability is a reflected XSS issue classified under [CWE-79], Improper Neutralization of Input During Web Page Generation. The ProfileGrid plugin echoes attacker-controlled request parameters back into rendered HTML without adequate output encoding or input sanitization. When a victim follows a crafted link, the injected payload executes within the origin of the WordPress site.
Because the attack changes execution context from the attacker to the victim's authenticated session, an attacker can leverage browser privileges to read session cookies, manipulate the DOM, perform CSRF-style actions, or pivot toward administrative functions if an administrator is targeted. The cross-origin scope change increases the blast radius beyond the vulnerable component.
Root Cause
The root cause is missing or insufficient sanitization and escaping of HTTP request parameters before they are reflected into HTML output by ProfileGrid handlers. WordPress provides helpers such as esc_html(), esc_attr(), and sanitize_text_field(), but the affected code paths in versions through 5.9.5.7 do not apply them consistently to user-controlled input.
Attack Vector
Exploitation requires an attacker to craft a malicious URL containing a JavaScript payload in a vulnerable parameter and deliver it to a target via phishing, forum posts, or other social engineering channels. When the victim loads the URL on the affected WordPress site, the payload reflects into the response and executes in the browser. No authentication is required from the attacker, but user interaction is required from the victim. See the Patchstack Vulnerability Report for advisory details.
Detection Methods for CVE-2025-4957
Indicators of Compromise
- HTTP request logs containing URL parameters with <script>, javascript:, onerror=, or onload= patterns directed at ProfileGrid endpoints
- Unexpected outbound requests from authenticated WordPress admin sessions to attacker-controlled domains
- Newly created WordPress administrator accounts or unexplained changes to user roles following a click on an external link
Detection Strategies
- Inspect web server and WAF logs for ProfileGrid request paths containing encoded or raw HTML/JavaScript payloads in query strings
- Deploy WAF rulesets that flag reflected XSS signatures targeting WordPress plugin endpoints
- Correlate referer headers from external email or messaging domains with subsequent privileged actions in WordPress audit logs
Monitoring Recommendations
- Enable verbose access logging on WordPress front-end and admin interfaces and forward logs to a centralized analytics platform
- Monitor for installed plugin versions across managed WordPress fleets and alert when ProfileGrid versions at or below 5.9.5.7 are detected
- Track Content Security Policy (CSP) violation reports for inline script execution attempts on pages served by ProfileGrid
How to Mitigate CVE-2025-4957
Immediate Actions Required
- Update the ProfileGrid plugin to a version newer than 5.9.5.7 as soon as a patched release is available from Metagauss
- Audit WordPress administrator and editor accounts for unauthorized changes since the publication date of the advisory
- Rotate session cookies and force re-authentication for privileged users if exploitation is suspected
Patch Information
Metagauss has been notified through the Patchstack disclosure process. Site operators should consult the Patchstack Vulnerability Report and the official plugin listing on the WordPress Plugin Directory for the latest fixed release. Apply the update through the WordPress admin dashboard or via WP-CLI.
Workarounds
- Deactivate and remove the ProfileGrid plugin until a patched version is installed if the plugin is not business-critical
- Deploy a Web Application Firewall rule that blocks requests containing common XSS payload patterns directed at ProfileGrid URLs
- Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins
# Update ProfileGrid plugin using WP-CLI
wp plugin update profilegrid-user-profiles-groups-and-communities
# Or temporarily deactivate the plugin until patched
wp plugin deactivate profilegrid-user-profiles-groups-and-communities
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
