Vulnerability · Published Sep 14, 2026 · Assigned by VulnCheck
CVE-2026-90934EspoCRM before 10.0.4 Field-level Security Bypass via Attendees
Medium 4.3
In plain English
A medium-severity incorrect authorization in espocrm from espocrm. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 76.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- GitHub Security Advisory (GHSA-hpgx-8qg3-5w7v) vendor-advisory
- VulnCheck Advisory: EspoCRM before 10.0.4 Field-level Security Bypass via Attendees third-party-advisory