SEPTEMBER 7, 2026
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Case File

CVE-2026-57852

MEDIUM · CVSS 5.6 EPSS 0.42% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-20 · Last synced 2026-08-19

CyberRota Analysis

AI-Generated

The Grav CMS scheduler-webhook plugin is vulnerable to an authentication bypass that enables unauthenticated remote attackers to execute scheduled jobs by exploiting a flaw in webhook token validation. This could lead to the unintended execution of commands defined by the operator, potentially compromising the web server's integrity. Organizations using Grav CMS with this plugin should prioritize addressing this vulnerability to mitigate the risk of unauthorized job execution.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-57852
Severity
MEDIUM
CVSS
5.6
EPSS
0.42%

Original NVD Description

Grav CMS scheduler-webhook plugin contains an authentication bypass vulnerability that allows unauthenticated remote attackers to trigger configured scheduled jobs by exploiting a short-circuit logic flaw in the webhook token validation. Attackers can send a single unauthenticated POST request to the scheduler webhook endpoint to execute all configured scheduled jobs or target a specific job, causing unintended execution of operator-defined commands under the web server process user.