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CVE-2026-62670— Fail-open authorization in grav-plugin-flex-objects admin-next API: api.access user gets full CRUD on permission-less directories (requireFlexPermission missing else-deny)

Quick assessment

Affected
getgrav grav-plugin-flex-objects
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.

Trilby Media Flex Objects Plugin是Trilby Media组织的一款灵活对象管理插件。 Trilby Media Flex Objects Plugin 1.4.3之前版本存在授权问题漏洞，该漏洞源于requireFlexPermission()方法在目录蓝图省略config.admin.permissions时未拒绝访问，可能导致经过身份验证的攻击者利用仅具有api.access的账户执行index、show、create、update、delete、export和med

CVSS 6.3 · Medium EPSS 0.24% · P16

Possible ATT&CK Techniques 1 AI

T1078.001 · Default Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
getgrav grav-plugin-flex-objects < 1.4.3 affected
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I. Basic Information for CVE-2026-62670

Vulnerability Information
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Vulnerability Title
Fail-open authorization in grav-plugin-flex-objects admin-next API: api.access user gets full CRUD on permission-less directories (requireFlexPermission missing else-deny)
Source: CVE Program / CVE List V5
Vulnerability Description
Grav Flex Objects Plugin allows you to build custom collections of objects. Prior to 1.4.3, the Grav Flex Objects Admin Next API requireFlexPermission() method in classes/Api/FlexApiController.php returns without denying access when a directory blueprint omits config.admin.permissions. An authenticated account with only api.access can use the index, show, create, update, delete, export, and media handlers for a permission-less directory even though the core admin.flex-object. authorization fallback would deny the same actions. This issue is fixed in version 1.4.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Trilby Media Flex Objects Plugin 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Trilby Media Flex Objects Plugin是Trilby Media组织的一款灵活对象管理插件。 Trilby Media Flex Objects Plugin 1.4.3之前版本存在授权问题漏洞，该漏洞源于requireFlexPermission()方法在目录蓝图省略config.admin.permissions时未拒绝访问，可能导致经过身份验证的攻击者利用仅具有api.access的账户执行index、show、create、update、delete、export和med
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-flex-objects < 1.4.3 -

II. Public POCs for CVE-2026-62670

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III. Intelligence Information for CVE-2026-62670

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Patches & Fixes for CVE-2026-62670 (1)

Vendor Advisories for CVE-2026-62670 (1)

Vendor Pages for CVE-2026-62670 (1)

Same Patch Batch · getgrav · 2026-08-19 · 17 CVEs total

CVE-2026-62668 9.4 CRITICAL Grav API Plugin: Webhook SSRF via Unrestricted cURL Protocols
CVE-2026-62666 8.8 HIGH Grav API Plugin: non-super api.users.write manager -> super-admin via createApiKey (incomp
CVE-2026-64850 8.7 HIGH Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData()
CVE-2026-64852 8.7 HIGH Grav API Plugin: Missing authorization on API-key generate/revoke lets any admin.login use
CVE-2026-64851 8.5 HIGH Grav Shortcode Core Plugin: Stored XSS in shortcode-core attribute handlers
CVE-2026-62673 8.2 HIGH Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesys
CVE-2026-63407 8.2 HIGH Grav API Plugin: CORS 'Access-Control-Allow-Origin: *' on Authenticated API Responses
CVE-2026-62667 8.1 HIGH Grav API Plugin : API Key 'scopes' Never Enforced - Delegated Least-Privilege Keys Carry F
CVE-2026-63408 7.5 HIGH Grav API Plugin: JWT Access Token Accepted via `?token=` URL Query Parameter
CVE-2026-62669 7.4 HIGH Grav Login Plugin: 2FA Bypass via 'login.regenerate2FASecret' - Secret Rotation During Pen
CVE-2026-61690 6.5 MEDIUM Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits
CVE-2026-61842 6.5 MEDIUM Grav: Twig sandbox config exfiltration via grav.offsetGet + dump filter (CVE-2026-44738 by
CVE-2026-62672 6.0 MEDIUM Grav: Authenticated ReDoS via regex_replace in Twig Sandbox
CVE-2026-62671 5.4 MEDIUM CSRF in grav-plugin-login: anonymous attacker rotates a logged-in user's 2FA (TOTP) secret
CVE-2026-53654 5.3 MEDIUM Grav: Unauthenticated open redirect via login twofa_cancel _redirect
CVE-2026-61607 4.6 MEDIUM Grav API Plugin: Stored XSS via SVG Upload - API Media Pipeline Bypasses Sanitizer

IV. Related Vulnerabilities

Same vendor: getgrav
Same weakness: CWE-862

V. Comments for CVE-2026-62670

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