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CVE-2026-65897— Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups

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.

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 1.0.10之前版本存在权限许可和访问控制问题漏洞，该漏洞源于未验证InvitationsController::create()中的groups字段，允许经过身份验证的api.users.write调用者将受邀账户分配到授予api.super权限的组，攻击者可创建具有提升组成员资格的邀请记录，当接受邀请时，新账户在邀请者未持有这些权限的情况下获得完全super-admin API访问权限。

CVSS 8.8 · High EPSS 0.52% · P42

Affected Version Matrix 2

VendorProduct Version RangeStatus
getgrav grav < 1.0.10 affected
1.0.10 unaffected
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I. Basic Information for CVE-2026-65897

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 1.0.9 Privilege Escalation via Invitations groups
Source: CVE Program / CVE List V5
Vulnerability Description
Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Grav 权限许可和访问控制问题漏洞
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 1.0.10之前版本存在权限许可和访问控制问题漏洞，该漏洞源于未验证InvitationsController::create()中的groups字段，允许经过身份验证的api.users.write调用者将受邀账户分配到授予api.super权限的组，攻击者可创建具有提升组成员资格的邀请记录，当接受邀请时，新账户在邀请者未持有这些权限的情况下获得完全super-admin API访问权限。
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 ~ 1.0.10 -

II. Public POCs for CVE-2026-65897

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8534 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-65897

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Patches & Fixes for CVE-2026-65897 (3)

Vendor Advisories for CVE-2026-65897 (2)

Same Patch Batch · getgrav · 2026-07-23 · 4 CVEs total

CVE-2026-65608 8.8 HIGH Grav before 2.0.9 Remote Code Execution via FlexDirectory
CVE-2026-65895 8.5 HIGH Grav API Plugin before 1.0.10 Broken Access Control
CVE-2026-65896 7.1 HIGH Grav API Plugin before 1.0.10 Path Traversal via move

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-269

V. Comments for CVE-2026-65897

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