HomeCVE-2021-47812

CVE-2021-47812

CRITICAL
9.3CVSS
Published: 2026-01-16
Updated: 2026-01-16
AI Analysis

Description

GravCMS 1.10.7 contains an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code through the scheduler endpoint. Attackers can exploit the admin-nonce parameter to inject base64-encoded payloads and create malicious custom jobs with system command execution.

CVSS Metrics

Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
network
Complexity
low
Privileges
none
User Action
none
Confidentiality
undefined
Integrity
undefined
Availability
undefined
Weaknesses
CWE-862

Metadata

Primary Vendor
UNKNOWN
Published
1/16/2026
Last Modified
1/16/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

No affected products information available.

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CVE-CVE-2021-47812 | CRITICAL Severity | CVEDatabase.com | CVEDatabase.com