Auth bypass in Espocrm
CVE-2026-109957
EspoCRM before 10.0.7 contains an insecure direct object reference vulnerability that allows authenticated users with Import scope access to read other users' attachments by supplying a foreign attachmentId to the Import endpoint. Attackers can create an Import record referencing a known attachment ID, then call the error export endpoint to copy source rows into a downloadable CSV they own.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/espocrm/espocrm/security/advisories/GHSA-5729-xq64-4h22 (vendor-advisory)
- www.vulncheck.com/advisories/espocrm-before-10.0.7-idor-via-import-attachmentid… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109957?
- CVE-2026-109957 is a medium-severity vulnerability in Espocrm, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-13.
- How severe is CVE-2026-109957?
- Medium severity. CVSS v3 base score is 4.3 out of 10.