CVE-2020-37256

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/getgrav/grav/security/advisories/GHSA-cvmr-6428-87w9	Vendor Advisory
https://www.vulncheck.com/advisories/grav-cross-site-scripting-in-admin-plugin-page-editor	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*

History

26 Jun 2026, 18:58

Type	Values Removed	Values Added
CPE		cpe:2.3:a:getgrav:grav::::::::
First Time		Getgrav Getgrav grav
References	~~() https://github.com/getgrav/grav/security/advisories/GHSA-cvmr-6428-87w9 -~~	() https://github.com/getgrav/grav/security/advisories/GHSA-cvmr-6428-87w9 - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/grav-cross-site-scripting-in-admin-plugin-page-editor -~~	() https://www.vulncheck.com/advisories/grav-cross-site-scripting-in-admin-plugin-page-editor - Third Party Advisory

25 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 22:16

Updated : 2026-06-27 04:17

NVD link : CVE-2020-37256

Mitre link : CVE-2020-37256

CVE.ORG link : CVE-2020-37256

JSON object : View

Products Affected

getgrav

grav

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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