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2 vulnerabilities found for GravCMS by Getgrav
CVE-2021-47812 (GCVE-0-2021-47812)
Vulnerability from nvd – Published: 2026-01-15 23:25 – Updated: 2026-04-07 14:06
VLAI
EPSS
VEX
Title
GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2)
Summary
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.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-16 16:04 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49973 | exploit |
| https://getgrav.org | product |
| https://www.vulncheck.com/advisories/gravcms-arbi… | third-party-advisory |
Impacted products
Date Public
2021-06-09 00:00
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CVE-2021-47812 (GCVE-0-2021-47812)
Vulnerability from cvelistv5 – Published: 2026-01-15 23:25 – Updated: 2026-04-07 14:06
VLAI
EPSS
VEX
Title
GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2)
Summary
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.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-16 16:04 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49973 | exploit |
| https://getgrav.org | product |
| https://www.vulncheck.com/advisories/gravcms-arbi… | third-party-advisory |
Impacted products
Date Public
2021-06-09 00:00
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