CVE-2026-111937: Auth Bypass (CVSS 5.4)

Description

Frappe CRM before 1.81.2 contains a missing authorization vulnerability that allows authenticated Sales Users to access other users' CRM Notification records due to absent permission hooks. Attackers can query frappe.client endpoints filtering on to_user or call mark_as_read with another user argument to read, mark read, or delete others' notifications.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://github.com/frappe/crm/blob/v1.81.1/crm/api/notifications.py https://github.com/frappe/crm/blob/v1.81.1/crm/fcrm/doctype/crm_notification/crm_notification.json https://github.com/frappe/crm/blob/v1.81.1/crm/hooks.py https://github.com/frappe/crm/commit/a24d73acefa7f98f46903858514444442ce57614 https://github.com/frappe/crm/releases/tag/v1.81.2 https://github.com/frappe/crm/security/advisories/GHSA-4rjw-6mxx-m345 https://www.vulncheck.com/advisories/frappe-crm-before-1.81.2-missing-authorization-on-crm-notification-records

Frequently Asked Questions

What is CVE-2026-111937? +

Frappe CRM before 1.81.2 contains a missing authorization vulnerability that allows authenticated Sales Users to access other users' CRM Notification records due to absent permission hooks. Attackers can query frappe.client endpoints filtering on to_user or call mark_as_read with another user argument to read, mark read, or delete others' notifications. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-111937? +

CVE-2026-111937 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-111937? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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