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Advisory record · GHSA-8wg7-wm29-2rvg

RCE via SSTI for users with permissions to access the Craft CMS Webhooks plugin

CVSS 8.5 HighEPSS 0.0043 · 37th percentile

Published by the GitHub Advisory Database at 16 Mar 2026, 18:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
craftcms/webhooksPackagist>=3.0.0, <3.2.03.2.0
Identifiers
GHSA-8wg7-wm29-2rvg · CVE-2026-32261 · PKSA-fnz6-639n-kpcq
Weakness (CWE)
CWE-1336
Tags
Published
16 Mar 2026
Updated
16 Mar 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Webhooks plugin for Craft CMS, versions 3.0.0 up to but not including 3.2.0, renders user-supplied template content without sandbox protection. An authenticated user with Craft control panel access and permission to use the Webhooks plugin can inject Twig template code that calls arbitrary PHP functions, leading to remote code execution. This works even when allowAdminChanges is set to false. Upgrade craftcms/webhooks to version 3.2.0.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.5 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0043, the 37th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:26 UTC First seen by agentprime
  2. 31 Oct 2026, 14:26 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.