CVE-2025-26878 Overview
CVE-2025-26878 is a DOM-Based Cross-Site Scripting (XSS) vulnerability in the Autoship Cloud for WooCommerce Subscription Products plugin developed by patternsinthecloud. The flaw affects all plugin versions from n/a through 2.8.0.1 and is classified under [CWE-79]: Improper Neutralization of Input During Web Page Generation. Successful exploitation requires low-privileged authentication and user interaction, but the scope change allows the attacker to affect resources beyond the vulnerable component. The issue was published to the National Vulnerability Database (NVD) on 2025-02-25 based on a report tracked by Patchstack.
Critical Impact
Authenticated attackers can inject client-side script that executes in victim browsers, enabling session theft, forced administrative actions, and modification of WooCommerce subscription data.
Affected Products
- Autoship Cloud for WooCommerce Subscription Products plugin (autoship-cloud) versions through 2.8.0.1
- WordPress sites running WooCommerce with the Autoship Cloud integration
- Downstream customer-facing subscription pages rendered by the plugin
Discovery Timeline
- 2025-02-25 - CVE-2025-26878 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-26878
Vulnerability Analysis
The vulnerability resides in the client-side JavaScript delivered by the Autoship Cloud plugin. Attacker-controlled input is passed into a Document Object Model (DOM) sink without proper neutralization. The browser then parses the injected payload as executable script rather than inert data. Because the flaw is DOM-based, the malicious payload never needs to be reflected by the server, which complicates traditional web application firewall (WAF) inspection.
Exploitation requires an authenticated user with low privileges and a victim who interacts with a crafted link or page element. The Common Vulnerability Scoring System (CVSS) vector indicates a scope change, meaning the injected script can influence components outside the plugin's own security boundary, including WooCommerce order and customer data.
Root Cause
The root cause is improper neutralization of input during web page generation, tracked as [CWE-79]. The plugin writes untrusted values into DOM sinks such as innerHTML, document.write, or jQuery HTML helpers without applying context-aware encoding or a safe templating layer. Refer to the Patchstack Vulnerability Report for the specific sink identified by the reporter.
Attack Vector
An authenticated attacker crafts a URL or form input containing a JavaScript payload targeting a vulnerable DOM parameter exposed by the plugin. When a victim with an active WordPress or WooCommerce session loads the malicious content, the payload executes in the victim's browser context. The attacker can then read session cookies, perform actions on behalf of the victim, or manipulate subscription workflows rendered by the plugin.
No verified public exploit code is available at the time of publication. The vulnerability mechanism is described in prose above; see the Patchstack advisory for reproduction details.
Detection Methods for CVE-2025-26878
Indicators of Compromise
- Unexpected <script> tags, javascript: URIs, or event-handler attributes in WordPress post metadata, WooCommerce order notes, or plugin option values
- Outbound browser requests from administrator sessions to unknown domains shortly after loading Autoship-related pages
- New or modified WordPress administrator accounts following authenticated interactions with plugin URLs
Detection Strategies
- Inspect HTTP request parameters targeting Autoship Cloud endpoints for characters and keywords consistent with XSS payloads, such as <script, onerror=, and javascript:
- Enable Content Security Policy (CSP) reporting to capture blocked inline script execution on pages rendered by the plugin
- Correlate authenticated session activity with anomalous JavaScript errors or DOM mutations captured through browser telemetry
Monitoring Recommendations
- Aggregate WordPress access logs, WooCommerce audit trails, and browser CSP reports into a central analytics platform for cross-source correlation
- Alert on privilege changes, plugin configuration edits, and subscription record modifications performed within minutes of an authenticated Autoship page view
- Track the installed plugin version across the fleet and flag any host still running autoship-cloud<= 2.8.0.1
How to Mitigate CVE-2025-26878
Immediate Actions Required
- Identify every WordPress instance running the Autoship Cloud for WooCommerce Subscription Products plugin at version 2.8.0.1 or earlier
- Restrict administrative access to the plugin until a fixed release is deployed and require re-authentication for sensitive WooCommerce actions
- Rotate WordPress administrator and WooCommerce API credentials on any site where suspicious activity is observed
Patch Information
At the time of NVD publication, the advisory lists affected versions up to and including 2.8.0.1. Consult the Patchstack Vulnerability Report for the latest fixed release information and upgrade to the patched version as soon as it is published by patternsinthecloud.
Workarounds
- Deploy a strict Content Security Policy that blocks inline scripts and restricts script sources to trusted origins
- Place the WordPress admin area behind an application firewall rule that filters common XSS payload patterns in query strings and form inputs
- Disable or uninstall the Autoship Cloud plugin on sites that do not actively use its subscription functionality until a patched version is available
# Configuration example: enforce a restrictive CSP header via Apache
Header always set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
