CVE-2026-62669

Grav Login Plugin adds login, basic ACL, and session wide messages to Grav. Prior to 3.8.11, the Grav Login plugin login.regenerate2FASecret task checks only that the pending-session user exists rather than requiring $user->authorized. After submitting a victim's correct password, an attacker can invoke taskRegenerate2FASecret() during the pending TOTP challenge, overwrite twofa_secret, read the replacement secret from the response, calculate a valid code, and complete authentication without the victim's second factor. This issue is fixed in version 3.8.11.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/getgrav/grav-plugin-login/commit/5d1b722298cb947d8f434025d121b99152a2c630
https://github.com/getgrav/grav-plugin-login/releases/tag/3.8.11
https://github.com/getgrav/grav/security/advisories/GHSA-7mgc-c7pq-3rr3

Configurations

No configuration.

History

26 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) El plugin de inicio de sesión de Grav añade inicio de sesión, ACL básica y mensajes a nivel de sesión a Grav. Antes de la versión 3.8.11, la tarea login.regenerate2FASecret del plugin de inicio de sesión de Grav solo verifica que el usuario de la sesión pendiente exista en lugar de requerir $user -> authorized. Después de enviar la contraseña correcta de una víctima, un atacante puede invocar taskRegenerate2FASecret() durante el desafío TOTP pendiente, sobrescribir twofa_secret, leer el secreto de reemplazo de la respuesta, calcular un código válido y completar la autenticación sin el segundo factor de la víctima. Este problema está solucionado en la versión 3.8.11.

Information

Published : 2026-08-19 16:18

Updated : 2026-10-26 11:10

NVD link : CVE-2026-62669

Mitre link : CVE-2026-62669

CVE.ORG link : CVE-2026-62669

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

{"id": "CVE-2026-62669", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-62669", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-19T18:16:05.801751Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "getgrav", "product": "grav", "versions": [{"status": "affected", "version": "< 2.0.4"}]}, {"vendor": "getgrav", "product": "grav-plugin-login", "versions": [{"status": "affected", "version": "< 3.8.11"}]}]}], "published": "2026-08-19T16:18:19.460", "references": [{"url": "https://github.com/getgrav/grav-plugin-login/commit/5d1b722298cb947d8f434025d121b99152a2c630", "source": "security-advisories@github.com"}, {"url": "https://github.com/getgrav/grav-plugin-login/releases/tag/3.8.11", "source": "security-advisories@github.com"}, {"url": "https://github.com/getgrav/grav/security/advisories/GHSA-7mgc-c7pq-3rr3", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "Grav Login Plugin adds login, basic ACL, and session wide messages to Grav. Prior to 3.8.11, the Grav Login plugin login.regenerate2FASecret task checks only that the pending-session user exists rather than requiring $user->authorized. After submitting a victim's correct password, an attacker can invoke taskRegenerate2FASecret() during the pending TOTP challenge, overwrite twofa_secret, read the replacement secret from the response, calculate a valid code, and complete authentication without the victim's second factor. This issue is fixed in version 3.8.11."}, {"lang": "es", "value": "El plugin de inicio de sesi\u00f3n de Grav a\u00f1ade inicio de sesi\u00f3n, ACL b\u00e1sica y mensajes a nivel de sesi\u00f3n a Grav. Antes de la versi\u00f3n 3.8.11, la tarea login.regenerate2FASecret del plugin de inicio de sesi\u00f3n de Grav solo verifica que el usuario de la sesi\u00f3n pendiente exista en lugar de requerir $user -> authorized. Despu\u00e9s de enviar la contrase\u00f1a correcta de una v\u00edctima, un atacante puede invocar taskRegenerate2FASecret() durante el desaf\u00edo TOTP pendiente, sobrescribir twofa_secret, leer el secreto de reemplazo de la respuesta, calcular un c\u00f3digo v\u00e1lido y completar la autenticaci\u00f3n sin el segundo factor de la v\u00edctima. Este problema est\u00e1 solucionado en la versi\u00f3n 3.8.11."}], "lastModified": "2026-10-26T11:10:00.157", "sourceIdentifier": "security-advisories@github.com"}