CVE-2020-37094

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.espocrm.com	Product
https://www.exploit-db.com/exploits/48376	Exploit VDB Entry
https://www.vulncheck.com/advisories/espocrm-privilege-escalation	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:espocrm:espocrm:*:*:*:*:*:*:*:*

History

03 Mar 2026, 14:59

Type	Values Removed	Values Added
References	~~() https://www.espocrm.com -~~	() https://www.espocrm.com - Product
References	~~() https://www.exploit-db.com/exploits/48376 -~~	() https://www.exploit-db.com/exploits/48376 - Exploit, VDB Entry
References	~~() https://www.vulncheck.com/advisories/espocrm-privilege-escalation -~~	() https://www.vulncheck.com/advisories/espocrm-privilege-escalation - Third Party Advisory
First Time		Espocrm espocrm Espocrm
CPE		cpe:2.3:a:espocrm:espocrm::::::::
Summary		(es) EspoCRM 5.8.5 contiene una vulnerabilidad de autenticación que permite a los atacantes acceder a otras cuentas de usuario manipulando los encabezados de autorización. Los atacantes pueden decodificar y modificar los tokens Basic Authorization y Espo-Authorization para obtener acceso no autorizado a información y privilegios de usuarios administrativos.

03 Feb 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-03 22:16

Updated : 2026-03-03 14:59

NVD link : CVE-2020-37094

Mitre link : CVE-2020-37094

CVE.ORG link : CVE-2020-37094

JSON object : View

Products Affected

espocrm

espocrm

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

{"id": "CVE-2020-37094", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-03T22:16:25.673", "references": [{"url": "https://www.espocrm.com", "tags": ["Product"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.exploit-db.com/exploits/48376", "tags": ["Exploit", "VDB Entry"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/espocrm-privilege-escalation", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "EspoCRM 5.8.5 contiene una vulnerabilidad de autenticaci\u00f3n que permite a los atacantes acceder a otras cuentas de usuario manipulando los encabezados de autorizaci\u00f3n. Los atacantes pueden decodificar y modificar los tokens Basic Authorization y Espo-Authorization para obtener acceso no autorizado a informaci\u00f3n y privilegios de usuarios administrativos."}], "lastModified": "2026-03-03T14:59:29.090", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:espocrm:espocrm:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "534BF0F6-C81A-445E-ACAA-2E5B08832ABF", "versionEndIncluding": "5.8.5"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}