Grav is a file-based Web platform. Prior to 1.8.0-beta.27, A Denial of Service (DoS) vulnerability has been identified in Grav related to the handling of scheduled_at parameters. Specifically, the application fails to properly sanitize input for cron expressions. By manipulating the scheduled_at parameter with a malicious input, such as a single quote, the application admin panel becomes non-functional, causing significant disruptions to administrative operations. The only way to recover from this issue is to manually access the host server and modify the backup.yaml file to correct the corrupted cron expression. This vulnerability is fixed in 1.8.0-beta.27.
References
| Link | Resource |
|---|---|
| https://github.com/getgrav/grav/commit/9d11094e4133f059688fad1e00dbe96fb6e3ead7 | Patch |
| https://github.com/getgrav/grav/security/advisories/GHSA-x62q-p736-3997 | Exploit Third Party Advisory |
| https://github.com/getgrav/grav/security/advisories/GHSA-x62q-p736-3997 | Exploit Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
03 Dec 2025, 16:03
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/getgrav/grav/commit/9d11094e4133f059688fad1e00dbe96fb6e3ead7 - Patch | |
| References | () https://github.com/getgrav/grav/security/advisories/GHSA-x62q-p736-3997 - Exploit, Third Party Advisory | |
| First Time |
Getgrav
Getgrav grav |
|
| CPE | cpe:2.3:a:getgrav:grav:1.8.0:beta21:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta17:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta24:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta25:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta15:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta20:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta22:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta11:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta10:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta3:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta18:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta1:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta13:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta5:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta9:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta16:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta19:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta14:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta4:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta26:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta7:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta2:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta8:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta23:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta6:*:*:*:*:*:* cpe:2.3:a:getgrav:grav:1.8.0:beta12:*:*:*:*:*:* |
03 Dec 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/getgrav/grav/security/advisories/GHSA-x62q-p736-3997 - |
01 Dec 2025, 22:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-01 22:15
Updated : 2025-12-03 16:03
NVD link : CVE-2025-66303
Mitre link : CVE-2025-66303
CVE.ORG link : CVE-2025-66303
JSON object : View
Products Affected
getgrav
- grav
CWE
CWE-400
Uncontrolled Resource Consumption