Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-62232— Grav < 2.0.4 2FA Bypass via Secret Regeneration

Quick assessment

Affected
getgrav grav
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

getgrav Grav是getgrav个人开发者开源的一套可扩展的内容管理系统。 getgrav Grav 2.0.4之前版本存在授权问题漏洞，该漏洞源于登录插件中regenerate2FASecret任务在待处理的TOTP挑战窗口期间仅检查用户存在性而未授权，导致双因素认证绕过。攻击者知道受害者密码后，无需CSRF nonce即可调用该任务，将2FA密钥覆盖为攻击者选择的值，计算有效TOTP代码完成认证，将双因素认证降为单密码保护。

CVSS 7.4 · High EPSS 0.45% · P37

Affected Version Matrix 2

VendorProduct Version RangeStatus
getgrav grav < 2.0.4 affected
2.0.4 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-62232

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Grav < 2.0.4 2FA Bypass via Secret Regeneration
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
getgrav Grav 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
getgrav Grav是getgrav个人开发者开源的一套可扩展的内容管理系统。 getgrav Grav 2.0.4之前版本存在授权问题漏洞，该漏洞源于登录插件中regenerate2FASecret任务在待处理的TOTP挑战窗口期间仅检查用户存在性而未授权，导致双因素认证绕过。攻击者知道受害者密码后，无需CSRF nonce即可调用该任务，将2FA密钥覆盖为攻击者选择的值，计算有效TOTP代码完成认证，将双因素认证降为单密码保护。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
getgrav grav 0 ~ 2.0.4 -

II. Public POCs for CVE-2026-62232

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8571 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-62232

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-62232 (2)

Same Patch Batch · getgrav · 2026-07-17 · 10 CVEs total

CVE-2026-62233 8.8 HIGH grav-plugin-api < 1.0.6 Privilege Escalation via createApiKey
CVE-2026-62234 8.1 HIGH Grav < 2.0.4 SSRF via Unrestricted cURL Protocols
CVE-2026-62231 8.1 HIGH Grav < 1.0.6 API Key Scope Bypass via ApiKeyAuthenticator
CVE-2026-62386 7.5 HIGH Grav < 1.0.0-rc.16 Authentication Bypass via token URL Parameter
CVE-2026-62230 7.5 HIGH Grav < 2.0.4 File Access Bypass via Case Variation
CVE-2026-62387 7.1 HIGH Grav < 1.0.0-rc.16 CORS Misconfiguration via API Plugin
CVE-2026-62237 6.5 MEDIUM Grav < 2.0.4 ReDoS via regex_replace in Sandbox
CVE-2026-62235 6.3 MEDIUM Grav Flex-Objects < 1.4.3 Authorization Bypass via API
CVE-2026-62236 5.4 MEDIUM grav-plugin-login < 3.8.11 CSRF via regenerate2FASecret

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-862

V. Comments for CVE-2026-62232

No comments yet

Leave a comment