CVE-2025-2544: AI Content Pipelines WordPress XSS Vulnerability

CVE-2025-2544 Overview

CVE-2025-2544 is a stored Cross-Site Scripting (XSS) vulnerability [CWE-79] in the AI Content Pipelines plugin for WordPress. The flaw affects all versions up to and including 1.6. It stems from insufficient input sanitization and output escaping when the plugin processes Scalable Vector Graphics (SVG) file uploads.

Authenticated attackers with Author-level access or higher can upload SVG files containing arbitrary JavaScript. The scripts execute in a victim's browser whenever the SVG file is accessed. Successful exploitation enables session theft, administrative account takeover, and malicious content injection into WordPress pages.

Critical Impact
Author-level users can persist JavaScript payloads through SVG uploads, executing scripts in the context of any visitor or administrator who loads the file.

Affected Products

AI Content Pipelines plugin for WordPress
All versions up to and including 1.6
WordPress sites permitting SVG uploads via the plugin

Discovery Timeline

2025-04-05 - CVE-2025-2544 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-2544

Vulnerability Analysis

The AI Content Pipelines plugin accepts SVG files without sanitizing embedded script content or escaping output when the file is served. SVG is an XML-based format that natively supports <script> elements and event-handler attributes such as onload and onclick. When a browser renders an unsanitized SVG, the embedded JavaScript executes in the origin of the WordPress site.

The vulnerable code paths are located in includes/generate-scheduled-content.php at lines 42, 44, and 47, according to the plugin source tree for tag 1.6. The plugin trusts uploaded file content and does not strip active SVG elements before storing or serving the file.

Because the payload is stored on the server, every subsequent request to the SVG re-executes the script. This turns a single upload into a persistent attack surface against site visitors and privileged users.

Root Cause

The root cause is missing input sanitization and output escaping for SVG uploads. The plugin does not apply an SVG sanitizer such as one enforcing an allow-list of safe tags and attributes. It also does not force a non-executing Content-Type or Content-Disposition: attachment when serving the file.

Attack Vector

An attacker authenticates to WordPress with Author privileges or higher. They craft an SVG containing a <script> element or an event handler attribute with JavaScript. They upload the file through the plugin's content generation workflow. Any user, including administrators, who navigates to the SVG URL triggers script execution in the site's browser context.

The vulnerability changes scope because scripts executed via the SVG can act against other authenticated sessions, enabling privilege escalation through administrator session compromise.

See the Wordfence Vulnerability Report and the WordPress Plugin File Reference for source-level details.

Detection Methods for CVE-2025-2544

Indicators of Compromise

SVG files in wp-content/uploads/ containing <script> tags, onload=, onerror=, or javascript: URIs
New or modified WordPress administrator accounts following SVG uploads by Author-level users
Outbound requests from browsers loading uploaded SVGs to unfamiliar domains
Presence of AI Content Pipelines plugin version 1.6 or earlier in the WordPress plugins directory

Detection Strategies

Scan the uploads directory for SVG files and inspect for scriptable XML elements and attributes
Review WordPress audit logs for SVG uploads performed by non-administrative accounts
Monitor HTTP responses serving image/svg+xml from the site and inspect for script content
Correlate SVG upload events with subsequent privileged account changes or plugin installations

Monitoring Recommendations

Alert on creation of .svg files by Author or Contributor accounts in WordPress
Enable web application firewall (WAF) logging for POST requests to admin-ajax.php and REST endpoints exposed by the plugin
Track outbound network connections initiated by browsers loading site content to identify beaconing from XSS payloads
Log and review changes to user roles, capabilities, and plugin files

How to Mitigate CVE-2025-2544

Immediate Actions Required

Update the AI Content Pipelines plugin to a version later than 1.6 as soon as a patched release is available
Audit existing SVG files uploaded through the plugin and remove any containing script content or event handlers
Restrict Author-level and above accounts to trusted users, and reset credentials for accounts that may have been misused
Review WordPress administrator accounts and audit logs for signs of privilege abuse

Patch Information

No fixed version is documented in the NVD record at the time of publication. Monitor the WordPress plugin page and the Wordfence advisory for release notes and confirmed patched versions.

Workarounds

Deactivate the AI Content Pipelines plugin until a patched version is installed
Disable SVG uploads at the WordPress level by removing image/svg+xml from allowed MIME types
Serve existing SVG files with Content-Disposition: attachment to prevent inline browser rendering
Deploy a WAF rule that blocks uploads of SVG files containing <script, onload=, onerror=, or javascript: strings

bash

# Restrict SVG MIME type in wp-config.php or a mu-plugin
add_filter('upload_mimes', function($mimes) {
    unset($mimes['svg']);
    unset($mimes['svgz']);
    return $mimes;
});