Unrated severityNVD Advisory· Published Jan 15, 2026· Updated Apr 7, 2026
GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2)
CVE-2021-47812
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- www.exploit-db.com/exploits/49973mitreexploit
- www.vulncheck.com/advisories/gravcms-arbitrary-yaml-writeupdate-unauthenticatedmitrethird-party-advisory
- getgrav.orgmitreproduct
News mentions
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