CVEvulnerability

CVE-2025-66303

4.9 MEDIUM Published 2025-12-01 Modified 2026-09-26 Official page ↗
Status
Analyzed
Published
2025-12-01
Last modified
2026-09-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.9 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400

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.

Affected configurations

• getgrav grav (< 1.8.0) • getgrav grav 1.8.0

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References