Grav before 1.6.30 contains a cross-site scripting vulnerability in the Admin plugin page editor default security configuration. Privileged users with page editing capabilities can inject malicious scripts to execute arbitrary code and install malicious plugins for system access.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Getgrav
  • Grav-plugin-admin

No data.

No data.

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Vendors Products
References
Link Providers
https://github.com/getgrav/grav/security/advisories/GHSA-cvmr-6428-87w9 cve-icon
https://www.vulncheck.com/advisories/grav-cross-site-scripting-in-admin-plugin-page-editor cve-icon
History

Thu, 25 Jun 2026 22:00:00 +0000

Type Values Removed Values Added
Description Grav before 1.6.30 contains a cross-site scripting vulnerability in the Admin plugin page editor default security configuration. Privileged users with page editing capabilities can inject malicious scripts to execute arbitrary code and install malicious plugins for system access.
Title Grav - Cross-Site Scripting in Admin Plugin Page Editor
First Time appeared Getgrav
Getgrav grav-plugin-admin
Weaknesses CWE-79
CPEs cpe:2.3:a:getgrav:grav-plugin-admin:*:*:*:*:*:*:*:*
Vendors & Products Getgrav
Getgrav grav-plugin-admin
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-25T21:41:00.831Z

Reserved: 2026-06-22T21:55:13.786Z

Link: CVE-2020-37256

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-26T00:00:14Z