CVE-2026-90934

Summary

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 Software

Weaknesses

• CWE-863: Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

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

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