CVE-2025-26775: BEAR Woo-Bulk-Editor Stored XSS Vulnerability

CVE-2025-26775 Overview

CVE-2025-26775 is a stored cross-site scripting (XSS) vulnerability in the RealMag777 BEAR - WooCommerce Bulk Editor and Products Manager Professional plugin for WordPress. The flaw exists because the plugin fails to properly neutralize user-supplied input during web page generation, allowing malicious script content to be persisted and later rendered in the browser context of other users. The vulnerability affects all versions of the plugin up to and including 1.1.4.4. Exploitation requires an authenticated actor with high privileges and user interaction, but the scope-changed impact means injected payloads can affect other users beyond the attacker's session.

Critical Impact

Stored XSS enables attackers with high-privilege access to inject persistent JavaScript that executes in the browsers of administrators or customers visiting affected WooCommerce store pages.

Affected Products

• Pluginus BEAR - WooCommerce Bulk Editor and Products Manager Professional (all versions through 1.1.4.4)
• WordPress installations running the woo-bulk-editor plugin
• WooCommerce storefronts leveraging the BEAR plugin for bulk product management

Discovery Timeline

• 2025-02-17 - CVE-2025-26775 published to NVD
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-26775

Vulnerability Analysis

The vulnerability is a stored cross-site scripting flaw classified under [CWE-79] (Improper Neutralization of Input During Web Page Generation). The BEAR plugin accepts user-controlled input through its bulk editor interface without applying adequate output encoding or input sanitization. Attacker-supplied HTML or JavaScript is written to the WordPress database and later rendered without escaping when the affected page loads in a victim's browser.

Because the payload persists server-side, every user who subsequently views the affected view triggers execution. The scope-changed nature of the flaw means the injected script can act against resources outside the plugin's security boundary, such as WordPress administration pages or WooCommerce customer-facing views.

Root Cause

The root cause is missing or insufficient neutralization of untrusted input at the point of web page generation. The plugin does not apply WordPress sanitization primitives such as sanitize_text_field() on input, nor output-context functions such as esc_html(), esc_attr(), or wp_kses() when rendering stored values. This allows raw markup and script tags to survive the round-trip from request to response.

Attack Vector

Exploitation requires an authenticated actor holding high-privilege access to the bulk editor and a subsequent user interaction to trigger the payload. The attacker submits crafted product data or bulk edit fields containing JavaScript. When another user, including administrators, navigates to the affected view, the browser parses and executes the payload in the origin of the WordPress site. Consequences include session token theft, WooCommerce order manipulation, forced administrative actions via cross-site request forgery chains, and delivery of secondary browser-based payloads.

No public proof-of-concept exploit is currently listed for CVE-2025-26775. Technical details are available in the Patchstack XSS Vulnerability Report.

Detection Methods for CVE-2025-26775

Indicators of Compromise

• Product titles, descriptions, or bulk-edit fields containing <script>, onerror=, onload=, or javascript: payloads in the wp_posts or wp_postmeta tables.
• Unexpected outbound HTTP requests originating from WordPress admin sessions to attacker-controlled domains.
• Anomalous administrator account creation or role changes shortly after an editor accessed the BEAR bulk editor interface.

Detection Strategies

• Audit the WordPress database for HTML or JavaScript markup stored in product fields managed by the woo-bulk-editor plugin.
• Enable and review web server access logs for POST requests to plugin endpoints containing encoded script payloads.
• Deploy a web application firewall rule set that identifies XSS payload patterns targeting WordPress admin-ajax and REST endpoints.

Monitoring Recommendations

• Monitor privileged WordPress user sessions for anomalous DOM activity or unexpected script loads using Content Security Policy (CSP) reporting.
• Alert on modifications to the BEAR plugin data tables performed by accounts outside an approved editor list.
• Track newly added or modified administrator accounts and correlate with recent bulk-editor activity.

How to Mitigate CVE-2025-26775

Immediate Actions Required

• Restrict access to the BEAR bulk editor to a minimal set of trusted, high-privilege accounts and enforce multi-factor authentication for those users.
• Audit product data managed by the plugin for injected <script> blocks or event-handler attributes and sanitize any suspect entries.
• Rotate WordPress administrator credentials and invalidate active sessions if unauthorized bulk-editor activity is suspected.

Patch Information

At the time of publication, the NVD record lists affected versions from n/a through 1.1.4.4. Administrators should consult the Patchstack advisory for the latest fixed version and apply the vendor update through the WordPress plugin manager once available.

Workarounds

• Deactivate and remove the BEAR plugin until a patched version is installed if bulk editing is not operationally required.
• Deploy a WordPress-aware web application firewall with rules that block XSS payloads submitted to admin-ajax.php and plugin-specific endpoints.
• Implement a strict Content Security Policy that disallows inline scripts on WordPress administrative pages to limit payload execution.

# Example CSP header to reduce inline script execution on WordPress admin
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"