CVE-2025-10190: WP Easy Toggles XSS Vulnerability

CVE-2025-10190 Overview

CVE-2025-10190 is a Stored Cross-Site Scripting (XSS) vulnerability in the WP Easy Toggles plugin for WordPress. The flaw exists in the plugin's toggles shortcode and affects all versions up to and including 1.9.0. The vulnerability results from insufficient input sanitization and output escaping on user-supplied shortcode attributes [CWE-79]. Authenticated attackers with contributor-level access or above can inject arbitrary web scripts into pages. These scripts execute in the browser of any user who visits the affected page.

Critical Impact
Authenticated contributors can persist malicious JavaScript in WordPress pages, enabling session hijacking, credential theft, and administrator account takeover when higher-privileged users view the injected content.

Affected Products

WP Easy Toggles plugin for WordPress
All versions up to and including 1.9.0
WordPress sites permitting contributor-level or higher registrations

Discovery Timeline

2025-10-11 - CVE-2025-10190 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-10190

Vulnerability Analysis

The vulnerability resides in the shortcode handler registered by the WP Easy Toggles plugin. The toggles shortcode accepts user-supplied attributes that are rendered into page output without adequate sanitization or escaping. WordPress shortcodes execute server-side when a post or page is rendered, meaning attacker-controlled attribute values are embedded directly into the HTML delivered to visitors.

Because contributors can create and edit their own posts, an attacker with contributor privileges can embed a crafted toggles shortcode containing script payloads within attribute values. When an editor, administrator, or site visitor loads the resulting page, the injected script executes in their browser session under the site's origin.

Refer to the WordPress Plugin Code Reference and the Wordfence Vulnerability Report for the affected code path.

Root Cause

The plugin fails to apply WordPress escaping functions such as esc_attr() or esc_html() to shortcode attribute values before rendering them into HTML. Input sanitization on the write path is likewise missing, allowing raw script content to persist in post_content and be replayed on every page load [CWE-79].

Attack Vector

An authenticated attacker with contributor-level access authors a post containing the vulnerable toggles shortcode. The attacker supplies malicious payloads inside one of the shortcode's attributes. When the post is published or previewed by a higher-privileged user, the browser executes the payload in the context of the WordPress origin. This enables cookie theft, forced administrative actions via authenticated requests, and injection of persistent backdoors into site content.

No verified public exploit code is available. See the Wordfence Vulnerability Report for advisory details.

Detection Methods for CVE-2025-10190

Indicators of Compromise

Presence of [toggles ...] shortcodes in wp_posts.post_content containing HTML entities, <script> tags, on*= event handlers, or javascript: URIs within attribute values.
Unexpected outbound requests from visitor browsers to attacker-controlled domains after loading pages that render the toggles shortcode.
New administrator accounts, modified user roles, or unexplained plugin installations following contributor activity.
WP Easy Toggles plugin present at version 1.9.0 or earlier.

Detection Strategies

Query the WordPress database for toggles shortcode usage and inspect attribute values for script markers: SELECT ID, post_title FROM wp_posts WHERE post_content LIKE '%[toggles%'.
Review web server access logs for POST requests to /wp-admin/post.php from contributor accounts that create or update posts containing the shortcode.
Monitor rendered pages using content security policy (CSP) violation reports to surface inline script execution from post content.

Monitoring Recommendations

Audit contributor and author account activity, including new registrations and role changes.
Enable file integrity monitoring on wp-content/plugins/wp-easy-toggles/ to detect tampering.
Forward WordPress audit logs to a centralized SIEM for correlation with browser-side alerts and outbound network activity.

How to Mitigate CVE-2025-10190

Immediate Actions Required

Update WP Easy Toggles to a version later than 1.9.0 once the vendor publishes a patched release; verify the fix on the WordPress plugin page.
If no patched version is available, deactivate and remove the plugin from all WordPress installations.
Review all existing posts and pages for malicious toggles shortcode content and sanitize or delete affected entries.
Rotate credentials and session tokens for administrators and editors who may have viewed injected pages.

Patch Information

As of the last NVD update on 2026-06-17, no fixed version is enumerated in the CVE record. Monitor the WordPress Easy Toggles Plugin page and the Wordfence Vulnerability Report for patch availability.

Workarounds

Restrict contributor and author registrations; require manual approval for new low-privileged accounts.
Deploy a web application firewall (WAF) rule to block requests containing <script> or event-handler patterns inside toggles shortcode attributes.
Enforce a strict Content Security Policy that disallows inline scripts to reduce the impact of successful injection.
Remove the shortcode from published content until a patched version of the plugin is installed.

bash

# Locate and disable the vulnerable plugin via WP-CLI
wp plugin deactivate wp-easy-toggles
wp plugin delete wp-easy-toggles

# Search post content for the vulnerable shortcode
wp db query "SELECT ID, post_title FROM wp_posts WHERE post_content LIKE '%[toggles%';"