Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Getgrav | Grav | 1.10.7 |
Related Weaknesses (CWE)
References
- https://getgrav.orgProduct
- https://www.exploit-db.com/exploits/49973Exploit
- https://www.vulncheck.com/advisories/gravcms-arbitrary-yaml-writeupdate-unauthenThird Party Advisory
- https://www.exploit-db.com/exploits/49973Exploit
FAQ
What is CVE-2021-47812?
CVE-2021-47812 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 t...
How severe is CVE-2021-47812?
CVE-2021-47812 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-47812?
Check the references section above for vendor advisories and patch information. Affected products include: Getgrav Grav.