CVE-2026-58656— Grav API Plugin - Cross-Origin Admin Account Takeover via CORS Wildcard and JWT Query Parameter
Possible ATT&CK Techniques 3AI
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I. Basic Information for CVE-2026-58656
Vulnerability Information
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Vulnerability Title
Grav API Plugin - Cross-Origin Admin Account Takeover via CORS Wildcard and JWT Query Parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
Grav API plugin before v1.0.0-rc.16 accepts JWT tokens via the ?token= URL query parameter and responds with Access-Control-Allow-Origin: *, allowing unauthenticated attackers to make fully authenticated cross-origin API requests from any malicious website. Attackers who obtain a leaked JWT token from access logs, proxy logs, browser history, or Referrer headers can create persistent backdoor super-admin accounts and exfiltrate sensitive configuration and user data.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过GET请求中的查询字符串导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Grav 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grav Grav是Grav组织开源的一个基于文件系统的无数据库内容管理系统。 Grav 1.0.0-rc.16之前版本存在信息泄露漏洞，该漏洞源于通过?token=URL查询参数接受JWT令牌并响应Access-Control-Allow-Origin: *，允许未经身份验证的攻击者从恶意网站发起完全认证的跨域API请求。
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
II. Public POCs for CVE-2026-58656
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 9460 chars
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III. Intelligence Information for CVE-2026-58656
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Vendor Advisories for CVE-2026-58656 (2)
IV. Related Vulnerabilities
Same product: grav
- CVE-2026-61454
Grav before 2.0.4 Information Disclosure via __GRAV_CONFIG__ - CVE-2026-59193
Grav CMS — Improper Handling of Highly Compressed Data in In - CVE-2026-59190
Grav Admin Plugin — IDOR Privilege Escalation via saveUser() - CVE-2026-58493
grav-plugin-database: DSN Parameter Injection via Unsanitize - CVE-2026-58492
grav-plugin-database: SQL Injection in PDO::tableExists() du
Same vendor: getgrav
- CVE-2026-61454
Grav before 2.0.4 Information Disclosure via __GRAV_CONFIG__ - CVE-2026-59193
Grav CMS — Improper Handling of Highly Compressed Data in In - CVE-2026-59190
Grav Admin Plugin — IDOR Privilege Escalation via saveUser() - CVE-2026-58493
grav-plugin-database: DSN Parameter Injection via Unsanitize - CVE-2026-58492
grav-plugin-database: SQL Injection in PDO::tableExists() du
Same weakness: CWE-598
- CVE-2026-10078
Quay/config-tool: quay/config-tool: gitlab oauth client_secr - CVE-2026-44883
Portainer: JWT accepted in URL query leaks tokens to logs an - CVE-2026-2237
Synology DSM 安全漏洞 - CVE-2025-62317
HCL AION is affected by a vulnerability where sensitive info - CVE-2026-43875
WWBN AVideo: Password Hash Leaked in MobileManager OAuth Red
V. Comments for CVE-2026-58656
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