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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-86196— Grav API Plugin before 1.0.20 Authentication Bypass via Host Header

Quick assessment

Affected
getgrav grav-plugin-api
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grav是Grav组织开源的一款基于文件的扁平化内容管理系统。 Grav 1.0.20之前版本存在授权问题漏洞，该漏洞源于在forgot-password端点使用不受信任的Host标头构建密码重置链接，可能导致未经身份验证的攻击者将重置令牌重定向至攻击者控制的域名，拦截重置令牌并完成账户接管，包括超级管理员账户。

CVSS 8.7 · High EPSS 0.43% · P37

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 2

VendorProduct Version RangeStatus
getgrav grav-plugin-api < 1.0.20 affected
1.0.20 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-86196

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 API Plugin before 1.0.20 Authentication Bypass via Host Header
Source: CVE Program / CVE List V5
Vulnerability Description
Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious Host header, intercept the reset token from victim emails, and complete account takeover including super-admin accounts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Grav 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav是Grav组织开源的一款基于文件的扁平化内容管理系统。 Grav 1.0.20之前版本存在授权问题漏洞，该漏洞源于在forgot-password端点使用不受信任的Host标头构建密码重置链接，可能导致未经身份验证的攻击者将重置令牌重定向至攻击者控制的域名，拦截重置令牌并完成账户接管，包括超级管理员账户。
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-plugin-api 0 ~ 1.0.20 -

II. Public POCs for CVE-2026-86196

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-86196

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-86196 (2)

Same Patch Batch · getgrav · 2026-09-05 · 5 CVEs total

CVE-2026-86195 8.7 HIGH grav-plugin-api 1.0.0 through 1.0.19 Privilege Escalation via Dot-Keyed Super Flag
CVE-2026-86193 8.7 HIGH Grav API Plugin Authentication Bypass via Group-Inherited Super
CVE-2026-86194 6.9 MEDIUM Grav Form Plugin before 9.1.22 Cross-Page Form Execution
CVE-2026-86197 5.1 MEDIUM Grav before 2.0.20 Cross-Site Scripting via Assets Sandbox

IV. Related Vulnerabilities

Same product: grav-plugin-api
Same vendor: getgrav
Same weakness: CWE-290

V. Comments for CVE-2026-86196

No comments yet

Leave a comment