CVE-2025-66303
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
getgrav/gravPackagist | < 1.8.0-beta.27 | 1.8.0-beta.27 |
Affected products
29cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*+ 27 more
- cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*range: <1.8.0
- cpe:2.3:a:getgrav:grav:1.8.0:beta10:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta11:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta12:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta13:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta14:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta15:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta16:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta17:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta18:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta19:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta20:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta21:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta22:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta23:*:*:*:*:*:*
- 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:beta26:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta9:*:*:*:*:*:*
- (no CPE)range: < 1.8.0-beta.27
Patches
Vulnerability mechanics
References
4- github.com/getgrav/grav/commit/9d11094e4133f059688fad1e00dbe96fb6e3ead7nvdPatchWEB
- github.com/getgrav/grav/security/advisories/GHSA-x62q-p736-3997nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-x62q-p736-3997ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-66303ghsaADVISORY
News mentions
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