CVE-2020-37094

high

Description

EspoCRM 5.7.0 prior to 5.9.0 contains an authentication token reuse vulnerability that allows authenticated attackers to bypass two-factor authentication by exploiting token-to-password-hash mapping in application/Espo/Core/Utils/Authentication/Espo.php. Attackers can obtain an authentication token for a controlled account and replay it against any victim account sharing the same password, since tokens are bound to password hashes rather than unique per-user values, bypassing the victim's 2FA protections.

References

https://www.vulncheck.com/advisories/espocrm-two-factor-auth-bypass-via-auth-token-reuse-between-accounts-with-identical-passwords

https://www.exploit-db.com/exploits/48376

https://www.espocrm.com

https://github.com/espocrm/espocrm/commit/b299220dd0c7acdaa1ed8be8ffd79c7985093c7a

https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-31008

Details

Source: Mitre, NVD

Published: 2026-02-03

Updated: 2026-07-15

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity: High

CVSS v4

Base Score: 8.6

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00532