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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-72831— Grav through 2.0.11 Authentication Bypass via Flex Objects

CVSS 8.8 · High EPSS 0.30% · P23

Affected Version Matrix 3

VendorProductVersion RangeStatus
getgravgrav2.0.11≤ 2.0.11affected
< 1.4.7affected
1.4.7unaffected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-72831

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 through 2.0.11 Authentication Bypass via Flex Objects
Source: CVE Program / CVE List V5
Vulnerability Description
The Flex Objects plugin (through 1.4.6, tested with Grav 2.0.11) contains an incorrect authorization vulnerability in its Flex Objects API. FlexApiController::update() checks only the general Flex directory permission and does not apply the additional target/field/super-admin checks enforced by the dedicated Users and Groups API controllers. An authenticated account with api.access, admin.login, and users.update permissions (but without api.users.write or admin.super) can use the generic /api/v1/flex-objects/user-accounts endpoint to change a super administrator's password, or the /api/v1/flex-objects/user-groups endpoint to grant its group admin.super, resulting in full site takeover. Fixed in Flex Objects 1.4.7.
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
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
getgravgrav 2.0.11 ~ 2.0.11 -
getgravgrav 0 ~ 1.4.7 -

II. Public POCs for CVE-2026-72831

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8853 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-2026-72831

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-72831 (3)

Vendor Advisories for CVE-2026-72831 (2)

Same Patch Batch · getgrav · 2026-08-14 · 15 CVEs total

CVE-2026-728249.8 CRITICALGrav before 1.0.13 API Key Scope Bypass via PagesController
CVE-2026-728269.8 CRITICALGrav before 1.0.13 Scope Bypass via createApiKey
CVE-2026-728229.8 CRITICALGrav before 1.0.13 Authentication Bypass via disable2fa
CVE-2026-728309.8 CRITICALGrav API Plugin before 1.0.13 RCE via ConfigController scope bypass
CVE-2026-728299.8 CRITICALGrav before 1.0.13 API Key Scope Bypass via UsersController
CVE-2026-728198.8 HIGHGrav CMS before 2.0.13 Remote Code Execution via ZIP Upload
CVE-2026-728338.8 HIGHGrav 1.0.6 through 1.0.11 Privilege Escalation via Scoped API Keys
CVE-2026-728278.8 HIGHGrav CMS before 2.0.13 Remote Code Execution via Twig
CVE-2026-728257.6 HIGHGrav before 1.0.13 API-key scope cap bypass via ReportsController
CVE-2026-728287.2 HIGHGrav before 1.0.13 API Key Scope Bypass via InvitationsController
CVE-2026-728215.4 MEDIUMGrav Form Plugin before 9.1.15 Stored XSS via Radio Toggle
CVE-2026-728325.4 MEDIUMGrav before 2.0.12 Stored XSS via quoted-attribute bypass
CVE-2026-728235.4 MEDIUMGrav before 1.0.13 API-key scope cap bypass via DemoController
CVE-2026-728204.9 MEDIUMGrav 2.0.11 Path Traversal via Backup Profile Configuration

IV. Related Vulnerabilities

Same product: grav
Same vendor: getgrav
Same weakness: CWE-863

V. Comments for CVE-2026-72831

No comments yet

Leave a comment