High Β· published December 2, 2025
β‘ A crafty little feature allows admin users to inject Twig code, turning a harmless content management tool into a playground for privilege escalation and remote code execution! π₯ Think of this like a restaurant where the chef accidentally leaves the recipe book open. Any waiter (admin user) can add their own "special dishes" (malicious code) to the menu, leading to some dangerous meals being served! An attacker with admin access could elevate their privileges to full control or execute any command on the server, jeopardizing the entire siteβs security. This means they could change settings, access sensitive data, or potentially wreak havoc on the system β a recipe for disaster!
Think of this like a restaurant where the chef accidentally leaves the recipe book open. Any waiter (admin user) can add their own "special dishes" (malicious code) to the menu, leading to some dangerous meals being served! This vulnerability allows users with admin panel access to enable Twig processing in the page frontmatter, enabling them to inject malicious Twig expressions that can escalate privileges or execute arbitrary commands through the scheduler API.
An attacker with admin access could elevate their privileges to full control or execute any command on the server, jeopardizing the entire siteβs security. This means they could change settings, access sensitive data, or potentially wreak havoc on the system β a recipe for disaster! Immediately update to Grav version 1.8.0-beta.27 or later to patch this vulnerability. Review permissions carefully to ensure that only trusted users have admin access. Monitor your system for any unusual activity as a precaution. You've got this! By following these steps, you're on your way to securing your Grav CMS like a pro! π‘οΈ
| Product | Versions | Fixed in |
|---|---|---|
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | < 1.8.0 | 1.8.0 |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |
| getgrav/grav | all versions | β |