CVE-2025-23595 Overview
CVE-2025-23595 is a reflected Cross-Site Scripting (XSS) vulnerability in the Page Health-O-Meter WordPress plugin developed by brainpulse. The flaw stems from improper neutralization of user-supplied input during web page generation [CWE-79]. All plugin versions up to and including 2.0 are affected. Attackers can craft malicious URLs that, when clicked by an authenticated or unauthenticated user, execute arbitrary JavaScript in the victim's browser session. The vulnerability requires user interaction but no privileges, and changes the security scope by executing script in the context of the targeted WordPress site.
Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in a victim's browser, enabling session theft, credential harvesting, and unauthorized actions on behalf of the user.
Affected Products
- Page Health-O-Meter WordPress plugin (vendor: brainpulse)
- All versions from initial release through 2.0
- WordPress sites with the page-health-o-meter plugin installed and active
Discovery Timeline
- 2025-03-03 - CVE-2025-23595 published to the National Vulnerability Database
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-23595
Vulnerability Analysis
The Page Health-O-Meter plugin fails to sanitize or encode user-controlled input before reflecting it into HTTP response bodies. When a victim loads a crafted URL containing JavaScript payloads, the browser renders the unescaped input as executable script. Because the attack changes scope (S:C), injected script can affect resources beyond the vulnerable component, including other WordPress page contexts and authenticated sessions. The vulnerability requires user interaction, typically achieved through phishing links or malicious referrers.
Root Cause
The root cause is improper neutralization of input during web page generation, classified under [CWE-79]. The plugin processes request parameters and embeds them directly into HTML output without applying contextual output encoding such as esc_html(), esc_attr(), or wp_kses(). WordPress provides these native sanitization functions specifically to prevent reflected XSS, but the plugin code does not invoke them on the affected input paths.
Attack Vector
The attack vector is network-based and exploitable remotely with low complexity. An attacker constructs a URL pointing to a vulnerable endpoint of the Page Health-O-Meter plugin, embedding a JavaScript payload in a reflected parameter. The attacker then delivers the URL through email phishing, social media, or compromised third-party sites. When a logged-in administrator or visitor clicks the link, the payload executes in their browser under the origin of the WordPress site. Refer to the Patchstack Vulnerability Advisory for additional technical details.
Detection Methods for CVE-2025-23595
Indicators of Compromise
- HTTP request logs containing URL parameters with <script>, javascript:, or HTML event handler patterns targeting page-health-o-meter endpoints
- Unexpected outbound requests from administrator browser sessions to attacker-controlled domains
- Anomalous WordPress administrative actions originating from valid sessions shortly after URL clicks
Detection Strategies
- Inspect web server access logs for requests to plugin paths containing encoded script payloads such as %3Cscript%3E or onerror=
- Deploy a web application firewall (WAF) rule set with OWASP CRS XSS signatures applied to WordPress plugin endpoints
- Correlate HTTP referer anomalies with authenticated WordPress administrator activity in SIEM platforms
Monitoring Recommendations
- Enable verbose access logging on the WordPress reverse proxy or web server for all plugin URI paths
- Monitor for new or unexpected WordPress administrator accounts and modified plugin or theme files
- Alert on Content Security Policy (CSP) violation reports indicating blocked inline script execution
How to Mitigate CVE-2025-23595
Immediate Actions Required
- Deactivate and remove the Page Health-O-Meter plugin until a patched version is confirmed available from the vendor
- Audit WordPress administrator and editor accounts for unauthorized changes, new users, or suspicious sessions
- Force password resets and invalidate active sessions for all privileged WordPress users
Patch Information
No vendor patch is referenced in the available advisory data for versions beyond 2.0. Site administrators should monitor the Patchstack Vulnerability Advisory and the plugin's WordPress.org repository page for an updated release that addresses the reflected XSS issue.
Workarounds
- Remove the plugin entirely if a patched version is not yet available
- Deploy a WAF with reflected XSS rules in blocking mode for all WordPress plugin paths
- Implement a strict Content Security Policy that disallows inline script execution and restricts script sources to trusted origins
# Configuration example: Apache CSP header to mitigate reflected XSS
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"
Header set X-XSS-Protection "1; mode=block"
Header set X-Content-Type-Options "nosniff"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
