Grav is a file-based Web platform. Prior to 1.8.0-beta.27, Grav CMS is vulnerable to a Server-Side Template Injection (SSTI) that allows any authenticated user with editor permissions to execute arbitrary code on the remote server, bypassing the existing security sandbox. Since the security sandbox does not fully protect the Twig object, it is possible to interact with it (e.g., call methods, read/write attributes) through maliciously crafted Twig template directives injected into a web page. This allows an authenticated editor to add arbitrary functions to the Twig attribute system.twig.safe_filters, effectively bypassing the Grav CMS sandbox. This vulnerability is fixed in 1.8.0-beta.27.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from getgrav organizations running these solutions should prioritize assessment and patching.
Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2025-12-01T22:15:49.290
2025-12-03T15:41:59.710
Analyzed
CVSSv3.1: 8.8 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | getgrav | grav | < 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
| Application | getgrav | grav | 1.8.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For getgrav's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.