CVE-2026-109957CWE-639

CVE-2026-109957

Medium · published October 13, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
9.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00204 · 9.9th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-13T18:17Z
References (2)
https://github.com/espocrm/espocrm/security/advisories/GHSA-5729-xq64-4h22 · [email protected]https://www.vulncheck.com/advisories/espocrm-before-10.0.7-idor-via-import-attachmentid-parameter · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 13 OCT 13:27Z
    EspoCRM before 10.0.7 IDOR via Import attachmentId Parameter
    cvelistv5
  • 13 OCT 13:27Z
    EspoCRM before 10.0.7 IDOR via Import attachmentId Parameter
    cvelistv5