CVE-2025-23905: Admin Options Pages XSS Vulnerability

CVE-2025-23905 Overview

CVE-2025-23905 is a reflected cross-site scripting (XSS) vulnerability in the Johannes van Poelgeest Admin Options Pages WordPress plugin. The flaw affects all versions of admin-options-pages up to and including 0.9.7. The plugin fails to properly neutralize user-supplied input during web page generation, allowing attackers to inject arbitrary JavaScript that executes in the victim's browser. The vulnerability is tracked under CWE-79 and requires user interaction, typically a victim clicking a crafted link.

Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in an authenticated administrator's browser, potentially leading to session theft, account takeover, or unauthorized configuration changes.

Affected Products

Johannes van Poelgeest Admin Options Pages plugin for WordPress
All versions from n/a through 0.9.7
WordPress installations with the admin-options-pages plugin enabled

Discovery Timeline

2025-02-14 - CVE-2025-23905 published to NVD
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-23905

Vulnerability Analysis

The vulnerability is a reflected cross-site scripting flaw in the Admin Options Pages WordPress plugin. Reflected XSS occurs when an application accepts attacker-supplied data in a request and echoes that data back into the HTTP response without proper encoding or sanitization. An attacker crafts a malicious URL containing JavaScript payloads in query parameters. When a logged-in administrator or privileged user clicks the link, the injected script executes within the WordPress admin context.

Because the scope is changed (S:C in the CVSS vector), the injected script can affect resources beyond the vulnerable component itself, including the broader WordPress admin session. The EPSS score of 0.178% reflects a low predicted likelihood of exploitation, but the impact in compromised environments can be significant.

Root Cause

The root cause is improper neutralization of user input during web page generation, as classified by CWE-79. The plugin reflects request parameters into HTML output without applying output encoding functions such as esc_html(), esc_attr(), or wp_kses(). WordPress provides these context-aware escaping APIs specifically to prevent XSS, but the affected plugin code paths bypass them.

Attack Vector

Exploitation requires an attacker to craft a malicious URL pointing to an affected admin page parameter and deliver it to a privileged WordPress user. Common delivery channels include phishing emails, malicious comments, or third-party site redirects. When the victim visits the URL, the reflected payload executes in their browser session, inheriting their WordPress cookies and permissions. No authentication is required from the attacker to craft the payload, but a victim interaction is required for execution.

Detailed technical analysis is available in the Patchstack Plugin Vulnerability Report.

Detection Methods for CVE-2025-23905

Indicators of Compromise

Suspicious query string parameters containing <script>, javascript:, onerror=, or onload= in requests to /wp-admin/ pages associated with the admin-options-pages plugin
Unusual referer headers pointing to external domains preceding requests to plugin admin pages
Unexpected administrator account changes, new user creations, or plugin installations following access to crafted URLs
HTTP access logs showing URL-encoded payloads such as %3Cscript%3E in plugin parameters

Detection Strategies

Inspect web server access logs for requests to admin-options-pages endpoints containing HTML or JavaScript metacharacters in query parameters
Deploy a Web Application Firewall (WAF) ruleset that flags reflected XSS payload patterns against the WordPress admin path
Correlate URL clicks from email gateways with subsequent WordPress administrative actions to identify successful phishing-driven exploitation

Monitoring Recommendations

Enable WordPress audit logging to track administrator actions, plugin changes, and user role modifications
Monitor outbound traffic from administrator workstations for connections to suspicious domains after WordPress admin sessions
Alert on creation of new WordPress administrator accounts or modifications to existing privileged accounts

How to Mitigate CVE-2025-23905

Immediate Actions Required

Identify all WordPress installations with the admin-options-pages plugin and confirm the installed version
Deactivate the plugin until a patched version is verified and installed if 0.9.7 or earlier is present
Force administrator session invalidation and password rotation if exploitation is suspected
Train administrators to avoid clicking unsolicited links to WordPress admin URLs

Patch Information

At the time of publication, no fixed version is referenced in the available advisory. Refer to the Patchstack Plugin Vulnerability Report and the WordPress plugin repository for updates beyond version 0.9.7.

Workarounds

Remove or deactivate the admin-options-pages plugin until a vendor patch is available
Deploy a WAF rule to block requests containing script tags or JavaScript event handlers in query parameters targeting plugin admin pages
Apply a strict Content Security Policy (CSP) on the WordPress admin interface to limit inline script execution
Restrict access to /wp-admin/ by source IP address using web server access controls

bash

# Example nginx rule to restrict wp-admin access by IP
location ~ ^/wp-admin/ {
    allow 203.0.113.0/24;
    deny all;
}