CVE-2026-90934

EUVD-2026-77452
EspoCRM before 10.0.4 contains a field-level security bypass vulnerability in the meeting and call attendees endpoints that allows authenticated users to read restricted email addresses. Attackers can recover hidden attendee emails by exploiting incorrect ACL scope validation that checks parent event permissions instead of attendee entity permissions.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.24%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
espocrmespocrm
𝑥
< 10.0.4
CNA
Common Weakness Enumeration
References
https://github.com/espocrm/espocrm/security/advisories/GHSA-hpgx-8qg3-5w7v
https://www.vulncheck.com/advisories/espocrm-before-10.0.4-field-level-security-bypass-via-attendees