๐Ÿ›ก๏ธ CVE-2025-66303
๐ŸŸก CVSS 4.9 โ€” Medium โœ… No Known Exploit CWE-400 NVD
4.9
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Medium
CVSS Score 4.9
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE CWE-400
Public Exploit โœ… No
Source NVD
Published 2025-12-02
Updated 2026-06-02
Modified 2025-12-02

Affected Packages

Software From version Fixed in
getgrav/grav โ€” 1.8.0-beta.27
grav โ€” โ€”

Similar Threats

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