CVE-2020-37094
EspoCRM 5.7.0 < 5.9.0 - Two-Factor Authentication Bypass via Auth Token Reuse Between Accounts with Identical Passwords
- State
- Published
- Severity
- 8.6 High
- Published
- Feb 3, 2026
- Updated
- Jul 15, 2026
- Reserved
- Feb 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | 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 | VulnCheck |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-303 Incorrect Implementation of Authentication Algorithm
Affected Products
| Product | Versions |
|---|---|
EspoCRMEspoCRM |
|
References
- ExploitDB-48376exploit
- EspoCRM Official Vendor Homepageproduct
- Patch Commitpatch
- VulnCheck Advisorythird-party-advisory
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