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CVE-2026-109317— Grav API Plugin before 1.0.36 Privilege Escalation via Scalar Access Grants

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 的 grav-plugin-api 插件在 1.0.36 版本之前存在一个权限提升漏洞，允许被委托的用户管理器通过存储正标量类型的管理员或 API 父级授权获取超级管理员权限。拥有 api.users.write 权限的攻击者可以编辑账户访问映射或邀请，使得继承权限解析器满足 requireSuper 检查条件，从而访问仅限超级管理员的 API 端点。

CVSS 7.2 · High EPSS 0.36% · P28

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 2

VendorProduct Version RangeStatus
getgrav grav-plugin-api < 1.0.36 affected
1.0.36 unaffected
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I. Basic Information for CVE-2026-109317

Vulnerability Information
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Vulnerability Title
Grav API Plugin before 1.0.36 Privilege Escalation via Scalar Access Grants
Source: CVE Program / CVE List V5
Vulnerability Description
Grav grav-plugin-api before 1.0.36 contains a privilege escalation vulnerability that allows delegated user managers to obtain super-admin access by storing positive scalar admin or api parent grants. Attackers with api.users.write can edit account access maps or invitations so the inheriting permission resolver satisfies requireSuper checks, accessing super-only API endpoints.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
getgrav grav-plugin-api 0 ~ 1.0.36 -

II. Public POCs for CVE-2026-109317

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III. Intelligence Information for CVE-2026-109317

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Vendor Advisories for CVE-2026-109317 (2)

Same Patch Batch · getgrav · 2026-10-12 · 14 CVEs total

CVE-2026-109321 9.1 CRITICAL Grav Login OAuth Plugin before 1.4.3 Predictable Local Credentials Authentication Bypass
CVE-2026-109313 8.1 HIGH Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Remember-Me Cookie
CVE-2026-109312 8.1 HIGH Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form
CVE-2026-109325 7.5 HIGH Grav from 2.0.22 before 2.1.7 Clockwork Profiler Authentication Bypass via Proxy
CVE-2026-109326 7.5 HIGH Grav before 2.1.7 Information Disclosure via Nested .git Directories
CVE-2026-109314 7.3 HIGH Grav Login Plugin 1.2.0 before 3.9.9 Password Reset Token Disclosure via Reset Page
CVE-2026-109315 6.5 MEDIUM Grav 2.0.22 before 2.1.7 Clockwork Debugger Token Disclosure via Twig Sandbox
CVE-2026-109324 6.5 MEDIUM Grav before 2.1.7 Memory Exhaustion via Oversized Image Transforms
CVE-2026-109316 6.5 MEDIUM Grav Data Manager 1.4.0 through 1.4.5 Unauthenticated File Deletion via Admin
CVE-2026-109322 6.1 MEDIUM Grav Guestbook before 0.5.2 Stored XSS via AJAX Pagination and Admin Views
CVE-2026-109320 5.4 MEDIUM Grav API Plugin before 1.0.36 Disabled Account Session Access Bypass
CVE-2026-109323 5.3 MEDIUM Grav Star Ratings 2.0.1 through 2.0.3 Missing Server-Side vote_access Authorization
CVE-2026-109319 4.3 MEDIUM Grav Guestbook Plugin 0.5.0 and 0.5.1 Missing Authorization and CSRF in Moderation

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-109317

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