CVE-2026-57852: Grav CMS scheduler-webhook plugin 0 through 1.1.3, 0 through 2.0.8

CVE-2026-57852. CVSS 3.1 base score 5.6 (MEDIUM, Vendor/CNA). EPSS 0.00686 (percentile 0.52159), scored 24-Oct-2026.

Affected technology

Grav CMS scheduler-webhook plugin · 0 through 1.1.3, 0 through 2.0.8
Trilby Media

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Unauthenticated remote attackers can trigger configured scheduled jobs by exploiting a short-circuit logic flaw in the webhook token validation. Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality, integrity and availability impact as low.

Published 25-Oct-2026 01:30 UTC

CWE: CWE-303
CCR priority: 22.6 /100 (P4)
CVSS 3.1: 5.6 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L · Vendor/CNA
EPSS: 0.00686 · percentile 0.52159 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-57852.html