CVE-2025-12671: WP-Iconics Plugin XSS Vulnerability

CVE-2025-12671 Overview

The WP-Iconics plugin for WordPress contains a Stored Cross-Site Scripting (XSS) vulnerability affecting all versions up to and including 0.0.4. The flaw resides in multiple parameters of the wp_iconics shortcode, where the plugin fails to properly sanitize input or escape output. Authenticated attackers with Contributor-level access or higher can inject arbitrary JavaScript into pages. The injected scripts execute in the browser of any visitor who views the affected page. The issue is tracked under CWE-79: Improper Neutralization of Input During Web Page Generation.

Critical Impact
Authenticated contributors can persist JavaScript payloads that execute against site visitors and administrators, enabling session theft, credential harvesting, and administrative account takeover.

Affected Products

WP-Iconics plugin for WordPress, versions 0.0.1 through 0.0.4
WordPress sites permitting Contributor-level or higher user registration
Any WordPress installation rendering the wp_iconics shortcode

Discovery Timeline

2025-11-11 - CVE-2025-12671 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-12671

Vulnerability Analysis

The WP-Iconics plugin registers a wp_iconics shortcode that accepts multiple user-controlled parameters. These parameters flow directly into rendered HTML output without sanitization or contextual escaping. Any user permitted to author posts, including Contributors, can embed the shortcode with malicious attribute values.

When the affected page renders, WordPress evaluates the shortcode and outputs attacker-controlled data inside the DOM. Browsers execute the injected script under the origin of the vulnerable site. This grants the attacker the privileges of the viewing user, including administrators who preview or moderate contributor content.

The stored nature of the flaw amplifies impact. Payloads persist in post content and execute for every subsequent visitor until manually removed. Common outcomes include cookie theft, forced administrative actions through the REST API, and redirection to phishing infrastructure.

Root Cause

The plugin's shortcode handler does not apply WordPress sanitization functions such as sanitize_text_field() on inbound parameters, nor escaping functions such as esc_attr() or esc_html() on rendered output. See the vulnerable source file referenced in the advisory for the affected code path.

Attack Vector

An authenticated attacker with Contributor privileges submits a post containing the wp_iconics shortcode with JavaScript embedded in vulnerable attributes. The payload is stored in the WordPress database. When an editor, administrator, or site visitor renders the page, the browser executes the injected script in the context of the site's origin. See the Wordfence vulnerability report for additional technical detail.

Detection Methods for CVE-2025-12671

Indicators of Compromise

Post or page content containing wp_iconics shortcode attributes with <script>, onerror, onload, or javascript: values
Unexpected outbound requests from browsers rendering WordPress pages to attacker-controlled domains
New administrative users or modified user roles created shortly after Contributor account activity
WordPress wp_posts rows edited by low-privilege accounts containing HTML event handler attributes

Detection Strategies

Query the WordPress database for the wp_iconics shortcode across wp_posts.post_content and inspect parameter values for HTML or JavaScript syntax
Audit user activity logs for Contributor accounts submitting posts that include the affected shortcode
Deploy web application firewall rules that flag shortcode parameters containing script tags or event handlers

Monitoring Recommendations

Log all post creation and update events from non-administrator roles for review
Monitor browser Content Security Policy (CSP) violation reports for inline script execution on pages using the plugin
Alert on newly created administrator accounts or role escalations following Contributor content submissions

How to Mitigate CVE-2025-12671

Immediate Actions Required

Deactivate the WP-Iconics plugin until a patched version is confirmed available on the official plugin page
Audit existing posts and pages for the wp_iconics shortcode and remove any suspicious parameter values
Restrict Contributor-level account creation and review recent registrations for legitimacy
Rotate administrator session cookies and credentials if malicious shortcode usage is confirmed

Patch Information

No fixed version is identified in the referenced advisories at the time of publication. All versions through 0.0.4 remain vulnerable. Site owners should monitor the WP-Iconics plugin page and the Wordfence advisory for updates.

Workarounds

Remove or disable the WP-Iconics plugin from all affected WordPress installations
Limit user role assignment so untrusted users cannot obtain Contributor privileges
Deploy a Content Security Policy that blocks inline script execution to reduce XSS impact
Configure a web application firewall to strip HTML tags and event handlers from shortcode attributes

bash

# Configuration example: disable the plugin via WP-CLI
wp plugin deactivate wp-iconics
wp plugin delete wp-iconics

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