CVE-2021-47812
⛔ criticalSummary
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 Score
9.8
Critical
EPSS Score
0.3
Exploit Probability
Published Date
2026-01-16
First Seen: 2026-01-16
📊 Relative Risk Intelligence
This CVE is Very High Risk - more severe than 90.4% of all 321,566 vulnerabilities in our database.
#30,777
Top 10% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jan 16, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Total
Complete system compromise possible
🏆 Discovered By
legend
SSVC data provided by
CISA
Last Modified
2026-02-02
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Vector 4.0
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
CWE IDs (Weakness Types)