CVE-2026-109959

MEDIUM 4.3

EspoCRM 4.0.0 before 10.0.7 Field-Level Security Bypass via Note Read Endpoint

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

EspoCRM 4.0.0 before 10.0.7 contains an access control vulnerability that allows authenticated users to read audited field values restricted by field-level security by fetching individual stream notes. Users with stream access to a parent record can request GET /Note/{id}, which skips the NoteAccessControl filter, and recover data.attributes.was and became values of restricted fields.

CWE	CWE-200
Vendor	espocrm
Product	espocrm
Published	Oct 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

espocrm / espocrm

4.0.0 < 10.0.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/espocrm/espocrm/security/advisories/GHSA-mr36-xx82-qf6h vulncheck.com: https://www.vulncheck.com/advisories/espocrm-4.0.0-before-10.0.7-field-level-security-bypass-via-note-read-endpoint

Credits

🔍 d3do-23