# CVE-2026-111938: Frappe CRM missing authorization in call log modification

Source: https://junglewise.ai/threats/cve-2026-111938-frappe-crm-before-1-74-0-contains-a-missing-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-19. Updated: 2026-10-19  
License: CC BY 4.0 with a link back

CVE-2026-111938 · Severity: medium · CVSS 4.3 · Published 2026-10-19

Frappe CRM is a customer relationship management system used to track sales activities, leads, and deals. Authenticated Sales Users can exploit a missing authorization check to modify other users' call logs, inserting malicious notes and tasks that appear on victims' records. This allows one user to tamper with another user's call history and associated business records without permission.

Technologies: [Frappe Crm](https://junglewise.ai/threats/technologies/frappe-crm). Vendors: [Frappe](https://junglewise.ai/threats/vendors/frappe).

## Quick answers

**Is CVE-2026-111938 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111938 being exploited in the wild.

**How severe is CVE-2026-111938?** Medium severity, with a CVSS score of 4.3, published 19 October 2026.

**Which products and versions are affected?** Frappe Crm before 1.74.0.

**Is there a fix for CVE-2026-111938?** Yes: fixed in 1.74.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111938 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-111938?** Check whether you run Frappe Crm 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 1.74.0

## Technical details

The vulnerability is an authorization bypass in the add_note_to_call_log and add_task_to_call_log API endpoints that lack permission validation before modifying call log records. An authenticated Sales User can supply an arbitrary call_sid parameter to attach notes and tasks to any call log without checking if the user has write access to that specific record. The fix adds an explicit frappe.has_permission("CRM Call Log", "write", call_sid) check before allowing modifications.

## Affected products

- Frappe CRM before 1.74.0

## Timeline

- 2026-10-19: disclosed

## References

- [https://github.com/frappe/crm/blob/v1.73.2/crm/integrations/api.py](https://github.com/frappe/crm/blob/v1.73.2/crm/integrations/api.py)
- [https://github.com/frappe/crm/commit/7872f4d178bd9338dba2eb4fc4808f4060914be6](https://github.com/frappe/crm/commit/7872f4d178bd9338dba2eb4fc4808f4060914be6)

## Related threats

- [Frappe CRM missing authorization in phone lookup API](https://junglewise.ai/threats/cve-2026-116492-frappe-crm-app-before-1-89-1-contains-a-missing-authorization)
- [Frappe CRM missing authorization in notifications](https://junglewise.ai/threats/cve-2026-111937-frappe-crm-before-1-81-2-contains-a-missing-authorization)
- [Frappe CRM missing authorization in get_linked_docs_of_document](https://junglewise.ai/threats/cve-2026-108734-frappe-crm-1-49-0-through-1-87-0-contains-a-missing)
- [Frappe CRM is an open-source customer relationship management tool. Prior to version 1.56.2, authenticated users could…](https://junglewise.ai/threats/cve-2025-68928-frappe-crm-is-an-open-source-customer-relationship-management)
- [Multiple SQL Injections in Frappe CRM Dashboard Controller due to unsafe concatenation of user-controlled parameters…](https://junglewise.ai/threats/cve-2025-11461-multiple-sql-injections-in-frappe-crm-dashboard-controller-due-to)