CVE-2026-62232 | Grav before 2.0.4 contains a two-factor authentication bypas… | CVSS 7.4 HIGH

Description

Grav before 2.0.4 contains a two-factor authentication bypass vulnerability in the login plugin where the regenerate2FASecret task checks only user existence, not authorization, during the pending TOTP challenge window. Attackers who know the victim's password can call this task without a CSRF nonce to overwrite the 2FA secret with an attacker-chosen value, compute a valid TOTP code, and complete authentication while reducing 2FA to password-only protection.

Metadata

CVE ID: CVE-2026-62232
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-13 16:40 UTC
Published: 2026-07-17 00:07 UTC
Last updated: 2026-07-17 00:07 UTC
Primary CWE: CWE-862
Missing Authorization
Vendor / Product: getgrav / grav
Sources: cve.org · NVD

Severity & Metrics

7.4 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products (1)

Vendor	Product	Platform	Versions
getgrav	grav	—	0 < 2.0.4, 2.0.4

Weakness (CWE)

CWE	Source	Description
CWE-862	cna	Missing Authorization

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.1	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References (2)

GitHub Security Advisory (GHSA-7mgc-c7pq-3rr3) https://github.com/getgrav/grav/security/advisories/GHSA-7mgc-c7pq-3rr3
VulnCheck Advisory: Grav < 2.0.4 2FA Bypass via Secret Regeneration https://www.vulncheck.com/advisories/grav-2fa-bypass-via-secret-regeneration