GHSA-mw85-cjh9-8hp7
Duplicate Advisory: Grav: The system, site, and theme Twig variables bypass the content sandbox entirely and are never covered by config_denied_paths
- Severity
- 0.0 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- —
- No score published
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Fix
- None yet
- No fixed version published
Description
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-p597-crqc-m349. This link is maintained to preserve external references.
Original Description
Grav CMS before 2.0.16 fails to filter system, site, and theme configuration arrays in sandboxed Twig renders, allowing content editors to read sensitive configuration values. Attackers with page-content edit access can access raw configuration arrays including secrets like cache credentials by using dot notation in Twig templates, bypassing the config_denied_paths restrictions.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| getgrav/grav | all versions |
No fix yet |
How to fix
No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.
Severity breakdown
CVSS 4.0 0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- Low
- User interaction
- None
- Confidentiality (vulnerable system)
- High
- Integrity (vulnerable system)
- None
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
- Exploit maturity
- Not defined
- Scope
- X
CVSS 3.1 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
How to prevent it
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
References
Advisories
Other links
Timeline
- Published
- Withdrawn
- Last updated by the source
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-xjw5-q542-3vmr Grav: config_denied_paths default list omits `system`, exposing real secrets (e.g. system.cache.redis.password) via the Twig sandbox when config_access is enabled | High | Also affects getgrav/grav |
| GHSA-3jhr-mxmx-38cx Grav: UserInterface offsetget/offsetexists allow-listed in Twig sandbox let editor-authored content leak hashed_password and 2FA secrets via offsetGet() | Medium | Also affects getgrav/grav |
| GHSA-9ccq-2jfg-qw33 Grav: Origin validation bypass in Uri::referrer() and Pages::referrerRoute() via unanchored prefix match | Critical | Also affects getgrav/grav |
| GHSA-38p6-h87p-r4cg Grav: Non constant time nonce comparison in Utils::verifyNonce() used for CSRF protection | Medium | Also affects getgrav/grav |
| GHSA-p597-crqc-m349 Grav: The system, site, and theme Twig variables bypass the content sandbox entirely and are never covered by config_denied_paths | Medium | Also affects getgrav/grav |
| GHSA-47ch-6w46-6xm7 Grav: media_directory() Twig function allows filesystem path traversal and file content disclosure from sandboxed page content | Medium | Also affects getgrav/grav |
| GHSA-jq29-c7v8-rg55 Grav: Path Traversal in MediaUploadTrait::deleteFile() Allows Arbitrary File Deletion | High | Also affects getgrav/grav |
| GHSA-8hgv-xc77-jmcr Grav: Page editors can inject arbitrary script into rendered pages via the Twig sandbox's assets.addJs/addCss allowlist, escalating to super-admin | Medium | Also affects getgrav/grav |
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