CVE-2026-56308

Capgo before 12.128.2 allows email address changes without requiring current password re-authentication or verification of the existing email address. An attacker with access to a valid session cookie or authenticated browser can change the account email to gain control of account recovery and bypass multi-factor authentication protections.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.1 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-9px4-w25f-mvm4
https://www.vulncheck.com/advisories/capgo-insufficient-authentication-in-email-change-endpoint
https://github.com/Cap-go/capgo/security/advisories/GHSA-9px4-w25f-mvm4

Configurations

No configuration.

History

25 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) Capgo anterior a 12.128.2 permite cambios de dirección de correo electrónico sin requerir re-autenticación de la contraseña actual o verificación de la dirección de correo electrónico existente. Un atacante con acceso a una cookie de sesión válida o un navegador autenticado puede cambiar el correo electrónico de la cuenta para obtener control de la recuperación de la cuenta y eludir las protecciones de autenticación multifactor.

Information

Published : 2026-07-12 12:16

Updated : 2026-10-25 15:10

NVD link : CVE-2026-56308

Mitre link : CVE-2026-56308

CVE.ORG link : CVE-2026-56308

JSON object : View

Products Affected

No product.

CWE

CWE-640

Weak Password Recovery Mechanism for Forgotten Password

{"id": "CVE-2026-56308", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-56308", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-14T14:44:38.112150Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.1}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/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": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "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"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"vendor": "Capgo", "product": "Capgo", "versions": [{"status": "affected", "version": "0", "lessThan": "12.128.2", "versionType": "semver"}, {"status": "unaffected", "version": "12.128.2", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-12T12:16:45.567", "references": [{"url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-9px4-w25f-mvm4", "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/capgo-insufficient-authentication-in-email-change-endpoint", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-9px4-w25f-mvm4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-640"}]}], "descriptions": [{"lang": "en", "value": "Capgo before 12.128.2 allows email address changes without requiring current password re-authentication or verification of the existing email address. An attacker with access to a valid session cookie or authenticated browser can change the account email to gain control of account recovery and bypass multi-factor authentication protections."}, {"lang": "es", "value": "Capgo anterior a 12.128.2 permite cambios de direcci\u00f3n de correo electr\u00f3nico sin requerir re-autenticaci\u00f3n de la contrase\u00f1a actual o verificaci\u00f3n de la direcci\u00f3n de correo electr\u00f3nico existente. Un atacante con acceso a una cookie de sesi\u00f3n v\u00e1lida o un navegador autenticado puede cambiar el correo electr\u00f3nico de la cuenta para obtener control de la recuperaci\u00f3n de la cuenta y eludir las protecciones de autenticaci\u00f3n multifactor."}], "lastModified": "2026-10-25T15:10:00.147", "sourceIdentifier": "disclosure@vulncheck.com"}