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Description

EspoCRM 5.8.5 contains an authentication vulnerability that allows attackers to access other user accounts by manipulating authorization headers. Attackers can decode and modify Basic Authorization and Espo-Authorization tokens to gain unauthorized access to administrative user information and privileges.

PUBLISHED Reserved 2026-02-01 | Published 2026-02-03 | Updated 2026-04-07 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Authorization Bypass Through User-Controlled Key

Product status

5.8.5
affected

Credits

Besim ALTINOK, İsmail BOZKURT finder

References

www.exploit-db.com/exploits/48376 (ExploitDB-48376) exploit

www.espocrm.com (EspoCRM Official Vendor Homepage) product

www.vulncheck.com/advisories/espocrm-privilege-escalation (VulnCheck Advisory: EspoCRM 5.8.5 - Privilege Escalation) third-party-advisory

cve.org (CVE-2020-37094)

nvd.nist.gov (CVE-2020-37094)

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