NVD / CVE Program· CNA GitHub_M

CVE-2025-66300: Grav is vulnerable to Arbitrary File Read

HighCVSS 8.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 34/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.48% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: getgrav grav 1.8.0-beta.27.

Low priority for now. Upgrade to getgrav grav 1.8.0-beta.27 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, A low privilege user account with page editing privilege can read any server files using "Frontmatter" form. This includes Grav user account files (/grav/user/accounts/*.yaml), which store hashed user password, 2FA secret, and the password reset token. This can allow an adversary to compromise any registered account by resetting a password for a user to get access to the password reset token from the file or by cracking the hashed password. This vulnerability is fixed in 1.8.0-beta.27.

Path traversal

GHSA-p4ww-mcp9-j6f2

Published: Dec 1, 2025
Updated: Sep 25, 2026
EPSS: 0.4% · 42th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 34 / 40 · 8.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · GitHub_M: 8.5; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
getgrav	grav	cpe:2.3:a:getgrav:grav

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

getgrav grav
- < 1.8.0-beta.27affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

getgrav gravbefore 1.8.0
getgrav grav1.8.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Packagist	getgrav/grav	before 1.8.0-beta.27	1.8.0-beta.27

Same product

getgrav: all records

Other highest-scoring records for the same primary product.

CVE-2025-50286A Remote Code Execution (RCE) vulnerability in Grav CMS v1.7.48 allows an authenticated admin to upload a malicious plugin via the…
60This week
CVE-2024-27921Grav File Upload Path Traversal vulnerability
53Plan
CVE-2025-66301Grav ihas Broken Access Control which allows an Editor to modify the page's YAML Frontmatter to alter form processing actions
40Plan

Published before and after this one in the same product

← EarlierCVE-2025-66298Dec 1, 2025 · Grav is vulnerable to Server-Side Template Injection (SSTI) via Forms
30Monitor
← EarlierCVE-2025-66299Dec 1, 2025 · Security Sandbox Bypass with SSTI (Server Side Template Injection) in the Grav CMS
35Monitor
Later →CVE-2025-66302Dec 1, 2025 · Grav vulnerable to Path Traversal allowing server files backup
27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
getgrav grav	1.8.0-beta.27 · description	Vendor (CNA)
Packagist:getgrav/grav	1.8.0-beta.27	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

getgrav/gravcommit ed640a1

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-662950 days apartGrav vulnerable to Path traversal / arbitrary YAML write via user creation leading to Account Takeover / System Corruption
35Monitor
CVE-2026-42608161 days apartGrav: Unauthenticated Path Traversal & Arbitrary File Write in FormFlash component.
35Monitor
CVE-2026-69089245 days apartGrav CMS before 2.0.11 Path Traversal via watermark
34Monitor
CVE-2026-74907260 days apartGrav before 2.0.15 Path Traversal via plugin-asset-map.php
32Monitor
CVE-2026-72695267 days apartGrav before 2.0.16 Path Traversal via MediaUploadTrait deleteFile
28Monitor
CVE-2026-72697267 days apartGrav CMS before 2.0.16 Path Traversal via media_directory
28Monitor

Not on record for this CVE: EPSS history · researcher credit · public bounty program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: none
Availability: low · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Changed
Confidentiality impact: High
Integrity impact: None
Availability impact: Low

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

nvd-secondary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/getgrav/grav/commit/ed640a13143c4177af013cf001969ed2c5e197ee

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records