CVE-2026-109662

Deferred Deferred - Pending Action

Stored XSS in Frappe ERPNext Portal Form

Publication date: 2026-10-12

Last updated on: 2026-10-12

Assigner: VulnCheck

Description

Frappe ERPNext before 15.112.0 and 16.x before 16.23.0 contains a stored cross-site scripting vulnerability in a public portal form that accepts unauthenticated submissions and stores content later rendered with insufficient neutralisation. Unauthenticated attackers can submit crafted markup that executes in the browser sessions of staff who review the stored record.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-12

Last Modified

2026-10-12

Generated

2026-10-13

AI Q&A

2026-10-13

EPSS Evaluated

N/A

NVD

CVE-2026-109662

Affected Vendors & Products

Vendor	Product	Version / Range
frappe	erpnext	0
frappe	erpnext	16.0.0-beta.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

Frappe ERPNext versions before 15.112.0 and 16.x before 16.23.0 have a stored cross-site scripting (XSS) vulnerability in a public portal form. This form allows unauthenticated users to submit data that is later displayed without proper sanitization. Attackers can inject malicious scripts that execute when staff members view the stored submissions.

Detection Guidance

Check for stored XSS in public portal forms by reviewing submitted content for suspicious markup. Inspect browser sessions of staff who review records for unexpected script execution. No specific commands are provided in the context.

Impact Analysis

Unauthenticated attackers can exploit this to execute arbitrary scripts in the browsers of staff who review the stored form submissions. This could lead to session hijacking, unauthorized data access, or defacement of internal portals.

Compliance Impact

This vulnerability could violate GDPR by exposing personal data through script injection or failing to protect user sessions. For HIPAA, it may risk unauthorized access to protected health information if staff systems are compromised.

Mitigation Strategies

Upgrade Frappe ERPNext to version 15.112.0 or later if using 15.x, or to 16.23.0 or later if using 16.x. Disable unauthenticated form submissions in public portals until patched.

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