CVE-2026-75082 Overview
CVE-2026-75082 is a cross-site scripting (XSS) vulnerability in Webkul Bagisto through version 2.4.4. The flaw resides in the customer registration flow at /customer/register, specifically in the Customer-Registration Notification Email component. Attackers can manipulate the first_name and last_name parameters to inject script content that executes in the context of the resulting notification. The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output).
Critical Impact
A remote unauthenticated attacker can submit crafted registration data that triggers basic XSS through the notification email component, with a published proof-of-concept increasing exposure.
Affected Products
- Webkul Bagisto versions up to and including 2.4.4
- Customer registration endpoint /customer/register
- Customer-Registration Notification Email component
Discovery Timeline
- 2026-08-18 - CVE-2026-75082 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-75082
Vulnerability Analysis
The vulnerability is a basic reflected/stored cross-site scripting issue in the Bagisto e-commerce platform. During customer registration, the application accepts first_name and last_name values without adequate output encoding. These values are subsequently rendered inside the notification email component, where injected markup or script content is preserved. Because the registration endpoint accepts anonymous submissions over the network and requires only minimal user interaction to trigger rendering, an attacker can weaponize the flaw remotely. The vendor has stated the issue was already identified through internal security review and will be resolved in an upcoming release.
Root Cause
The root cause is improper neutralization of special elements when handling user-supplied name fields. The application passes attacker-controlled input into the notification email rendering path without contextual HTML escaping, allowing script content to survive into the output.
Attack Vector
An unauthenticated remote attacker submits a registration request to /customer/register where the first_name or last_name parameters contain HTML or JavaScript payloads. When the notification email is generated or viewed, the injected content executes in the recipient's browsing context. A public proof-of-concept has been published referencing the GitHub Vulnerability Report and details are tracked at VulDB CVE-2026-75082.
Detection Methods for CVE-2026-75082
Indicators of Compromise
- Registration submissions containing HTML tags, <script> elements, or JavaScript event handlers in first_name or last_name fields.
- Notification emails or admin views rendering unexpected markup within customer name display areas.
- Repeated registrations from a single source using varied encoded payloads targeting /customer/register.
Detection Strategies
- Inspect web server and application logs for POST requests to /customer/register with suspicious characters such as <, >, ", or URL-encoded equivalents in name parameters.
- Deploy web application firewall rules to flag XSS signatures on registration endpoints.
- Review outbound notification email content for embedded scripts or unexpected HTML entities.
Monitoring Recommendations
- Monitor administrative interfaces that render customer records for unexpected script execution.
- Alert on high-volume anonymous registrations that deviate from baseline user behavior.
- Correlate registration payload anomalies with subsequent admin session activity for signs of downstream compromise.
How to Mitigate CVE-2026-75082
Immediate Actions Required
- Apply input validation on the first_name and last_name parameters at the application boundary, rejecting HTML control characters.
- Enforce contextual output encoding on all customer-supplied values rendered in emails and admin pages.
- Restrict access to administrative views of registration data until a vendor patch is applied.
Patch Information
The vendor confirmed the issue was identified through internal security review and stated that remaining items are planned for resolution in upcoming Bagisto releases. Track advisory updates through VulDB Vulnerability #391310 and the official Webkul Bagisto release notes.
Workarounds
- Deploy a web application firewall rule to strip or block HTML markup submitted to /customer/register.
- Configure a strict Content Security Policy (CSP) on admin and email-rendering surfaces to limit inline script execution.
- Sanitize stored customer name fields server-side before including them in notification email templates.
# Example WAF rule concept (ModSecurity)
SecRule ARGS:first_name|ARGS:last_name "@rx <|>|script|onerror|onload" \
"id:1075082,phase:2,deny,status:400,msg:'Blocked XSS attempt on Bagisto registration (CVE-2026-75082)'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
