CVE-2020-37094
Modified Modified - Updated After Analysis

Authentication Bypass in EspoCRM 5.8.5 via Authorization Header Manipulation

Vulnerability report for CVE-2020-37094, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-02-03

Last updated on: 2026-07-15

Assigner: VulnCheck

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-02-03
Last Modified
2026-07-15
Generated
2026-07-26
AI Q&A
2026-02-04
EPSS Evaluated
2026-07-25
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
espocrm espocrm to 5.8.5 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CWE-303 The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.

Attack-Flow Graph

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Executive Summary

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.

Detection Guidance

I don't know

Impact Analysis

This vulnerability can allow attackers to gain unauthorized access to other user accounts, including administrative accounts.

As a result, attackers could view, modify, or delete sensitive information and perform administrative actions without permission.

Compliance Impact

I don't know

Mitigation Strategies

I don't know

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EPSS Chart