Is CVE-2026-109662 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-109662 being exploited in the wild.

How severe is CVE-2026-109662?

Medium severity, with a CVSS score of 6.1, published 12 October 2026.

Which products and versions are affected?

Frappe ERPNext before 15.112.0, 16.x before 16.23.0.

Is there a fix for CVE-2026-109662?

Yes: fixed in ERPNext 15.112.0, 16.23.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-109662 attacked?

It is attacked over the network.

Am I affected by CVE-2026-109662?

Check whether you run Frappe ERPNext at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-109662: Frappe ERPNext stored XSS in public portal form

CVE-2026-109662 · Severity: medium · CVSS 6.1 · Published 2026-10-12

Frappe ERPNext is an enterprise resource planning system that includes a public-facing portal for form submissions. An unauthenticated attacker can submit a form containing malicious code that gets stored in the system and executes in the web browsers of staff members reviewing the submission, potentially allowing account takeover, credential theft, or internal system access.

Technologies: Frappe ERPNext. Vendors: Frappe.

Quick answers

Is CVE-2026-109662 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-109662 being exploited in the wild.
How severe is CVE-2026-109662?: Medium severity, with a CVSS score of 6.1, published 12 October 2026.
Which products and versions are affected?: Frappe ERPNext before 15.112.0, 16.x before 16.23.0.
Is there a fix for CVE-2026-109662?: Yes: fixed in ERPNext 15.112.0, 16.23.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-109662 attacked?: It is attacked over the network.
Am I affected by CVE-2026-109662?: Check whether you run Frappe ERPNext at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: ERPNext 15.112.0, 16.23.0

Technical details

A stored cross-site scripting vulnerability exists in the public portal form component due to insufficient input neutralization. Unauthenticated attackers can submit crafted HTML/JavaScript markup that is stored and later rendered without proper sanitization when staff review the stored record. This requires user interaction (a staff member viewing the stored record) and impacts the confidentiality and integrity of staff sessions.

Affected products

Frappe ERPNext before 15.112.0, 16.x before 16.23.0

Timeline

2026-08-13: disclosed
2026-10-12: advisory

References

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