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Grav CMS CVE-2026-62230

| EUVDEUVD-2026-45118 HIGH
Improper Handling of Case Sensitivity (CWE-178)
2026-07-17 VulnCheck GHSA-5mv9-76r9-rprq
Apple Microsoft Information Disclosure Docker PHP Grav
8.7
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
vuln.today AI
7.5 HIGH

Unauthenticated single-request read (PR:N/UI:N); AC:L retained because case-insensitive Windows/macOS/Docker hosts are common; confidentiality-only impact so I:N/A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Jul 17, 2026 - 02:32 EUVD
Analysis Generated
Jul 17, 2026 - 00:55 vuln.today
CVE Published
Jul 17, 2026 - 00:07 cve.org
HIGH 8.7

DescriptionCVE.org

Grav before 2.0.4 ships a default .htaccess (and reference webserver-configs/htaccess.txt) whose rules blocking access to sensitive file types (.yaml, .php, .json, etc.) lack the [NC] flag, making extension matching case-sensitive. On case-insensitive filesystems (Windows/NTFS, macOS/HFS+, or Docker volume mounts), an unauthenticated attacker can request these files with uppercase or mixed-case extensions (e.g., .YAML, .PHP) to bypass the restrictions and read sensitive configuration files that may contain API keys and credentials.

Articles & Coverage 1

News 4 New Docker Vulnerabilities - 4 High Severity, 1 With POC Jul 17, 2026

AnalysisAI

Sensitive configuration file disclosure in Grav CMS before 2.0.4 lets unauthenticated remote attackers bypass the bundled .htaccess protections by requesting blocked file types with uppercase or mixed-case extensions (e.g., .YAML, .PHP). The shipped rules omit the Apache [NC] flag, so extension matching is case-sensitive and fails to block case variants on case-insensitive filesystems (Windows/NTFS, macOS/HFS+, Docker volume mounts), exposing files that may hold API keys and credentials. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify Grav on case-insensitive host
Delivery
Request config file with uppercase extension
Exploit
Bypass case-sensitive .htaccess deny rule
Execution
Read exposed YAML/JSON/PHP config
Impact
Harvest API keys and credentials
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Vulnerability AssessmentAI

Exploitation Exploitation requires the target to be a Grav instance before 2.0.4 served by Apache using the bundled default .htaccess, AND hosted on a case-insensitive filesystem - specifically Windows/NTFS, macOS/HFS+, or a Docker volume/bind mount. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a credible, real-world information-disclosure risk rather than a paper-high score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker enumerates a Grav site running on Windows, macOS, or a Docker volume mount and requests a known config path with an uppercase extension, e.g. GET /user/config/system.YAML or /user/accounts/admin.YAML. …
Remediation Vendor-released patch: 2.0.4 - upgrade Grav to 2.0.4 or later, which corrects the .htaccess rules to include the [NC] flag for case-insensitive extension matching. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all Grav CMS installations and identify those running versions before 2.0.4, particularly on Windows, macOS, and containerized environments. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-62230 vulnerability details – vuln.today
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