GHSA-c43v-4cr8-6mvp

Suggest an improvement
Source
https://github.com/advisories/GHSA-c43v-4cr8-6mvp
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-c43v-4cr8-6mvp/GHSA-c43v-4cr8-6mvp.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-c43v-4cr8-6mvp
Aliases
Published
2026-07-09T13:44:06Z
Modified
2026-08-06T22:00:56Z
Severity
  • 2.0 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Craft CMS has authenticated path traversal in `assets/icon`, allowing local `.svg` file read
Details

Summary

An authenticated path traversal in assets/icon allows local SVG file read by passing traversal sequences in the extension parameter. The issue is caused by file existence checks happening before extension validation.

Details

The endpoint:

  • src/controllers/AssetsController.php:1115-1123
  • actionIcon(string $extension) calls Assets::iconPath($extension) and returns sendFile($path, ...).

In Assets::iconPath():

  • Path is built from user-controlled extension:
    • src/helpers/Assets.php:906-909
  • If file_exists($path) is true, path is returned immediately:
    • src/helpers/Assets.php:910-912

Validation exists in Assets::iconSvg():

  • preg_match('/^\w+$/', $extension)
  • src/helpers/Assets.php:927-931

However, that validation is only reached if iconPath() does not find a file. So traversal payloads that resolve to existing .svg files bypass validation and are served by sendFile().

Impact

  • Authenticated users can read local .svg files accessible to the application process.

References

Database specific 
{
    "cwe_ids":  [
        "CWE-22"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-09T13:44:06Z",
    "nvd_published_at":  null,
    "severity":  "LOW"
}
References

Affected packages

Packagist / craftcms/cms

Package

Name
craftcms/cms
Purl
pkg:composer/craftcms/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.0.0-RC1
Fixed
4.17.7

Affected versions

4.*
4.0.0-RC1
4.0.0-RC2
4.0.0-RC3
4.0.0
4.0.0.1
4.0.1
4.0.2
4.0.3
4.0.4
4.0.5
4.0.5.1
4.0.5.2
4.0.6
4.1.0
4.1.0.1
4.1.0.2
4.1.1
4.1.2
4.1.3
4.1.4
4.1.4.1
4.2.0
4.2.0.1
4.2.0.2
4.2.1
4.2.1.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.5.1
4.2.5.2
4.2.6
4.2.7
4.2.8
4.3.0
4.3.1
4.3.2
4.3.2.1
4.3.3
4.3.4
4.3.5
4.3.6
4.3.6.1
4.3.7
4.3.7.1
4.3.8
4.3.8.1
4.3.8.2
4.3.9
4.3.10
4.3.11
4.4.0-beta.1
4.4.0-beta.2
4.4.0-beta.3
4.4.0-beta.4
4.4.0-beta.5
4.4.0-beta.6
4.4.0-beta.7
4.4.0
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.6.1
4.4.7
4.4.7.1
4.4.8
4.4.9
4.4.10
4.4.10.1
4.4.11
4.4.12
4.4.13
4.4.14
4.4.15
4.4.16
4.4.16.1
4.4.17
4.5.0-beta.1
4.5.0-beta.2
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.6.1
4.5.7
4.5.8
4.5.9
4.5.10
4.5.11
4.5.11.1
4.5.12
4.5.13
4.5.14
4.5.15
4.6.0-RC1
4.6.0
4.6.1
4.7.0
4.7.1
4.7.2
4.7.2.1
4.7.3
4.7.4
4.8.0
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.8.6
4.8.7
4.8.8
4.8.9
4.8.10
4.8.11
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
4.10.0-beta.1
4.10.0-beta.2
4.10.0
4.10.1
4.10.2
4.10.3
4.10.4
4.10.5
4.10.6
4.10.7
4.10.8
4.11.0
4.11.0.1
4.11.0.2
4.11.1
4.11.2
4.11.3
4.11.4
4.11.5
4.12.0
4.12.1
4.12.2
4.12.3
4.12.4
4.12.4.1
4.12.5
4.12.6
4.12.6.1
4.12.7
4.12.8
4.12.9
4.13.0
4.13.1
4.13.1.1
4.13.2
4.13.3
4.13.4
4.13.5
4.13.6
4.13.7
4.13.8
4.13.9
4.13.10
4.14.0
4.14.0.1
4.14.0.2
4.14.1
4.14.2
4.14.3
4.14.4
4.14.5
4.14.6
4.14.7
4.14.8
4.14.8.1
4.14.9
4.14.10
4.14.11
4.14.11.1
4.14.12
4.14.13
4.14.14
4.14.15
4.15.0-beta.1
4.15.0-beta.2
4.15.0
4.15.0.1
4.15.0.2
4.15.1
4.15.2
4.15.3
4.15.4
4.15.5
4.15.6
4.15.6.1
4.15.6.2
4.15.7
4.16.0
4.16.1
4.16.2
4.16.3
4.16.4
4.16.5
4.16.6
4.16.6.1
4.16.7
4.16.8
4.16.9
4.16.9.1
4.16.10
4.16.11
4.16.12
4.16.13
4.16.14
4.16.15
4.16.16
4.16.17
4.16.18
4.16.19
4.17.0-beta.1
4.17.0-beta.2
4.17.0
4.17.1
4.17.2
4.17.3
4.17.4
4.17.5
4.17.6

Database specific

last_known_affected_version_range 
"<= 4.17.6"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-c43v-4cr8-6mvp/GHSA-c43v-4cr8-6mvp.json"

Packagist / craftcms/cms

Package

Name
craftcms/cms
Purl
pkg:composer/craftcms/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0-RC1
Fixed
5.9.13

Affected versions

5.*
5.0.0-RC1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
5.1.9
5.1.10
5.2.0-beta.1
5.2.0-beta.2
5.2.0-beta.3
5.2.0-beta.4
5.2.0-beta.5
5.2.0-beta.6
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.4.1
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.3.0-beta.1
5.3.0-beta.2
5.3.0
5.3.0.1
5.3.0.2
5.3.0.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.4.0
5.4.0.1
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.4.5.1
5.4.6
5.4.7
5.4.7.1
5.4.8
5.4.9
5.4.10
5.4.10.1
5.5.0
5.5.0.1
5.5.1
5.5.1.1
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.6.1
5.5.7
5.5.8
5.5.9
5.5.10
5.6.0
5.6.0.1
5.6.0.2
5.6.1
5.6.2
5.6.3
5.6.4
5.6.5
5.6.5.1
5.6.6
5.6.7
5.6.8
5.6.9
5.6.9.1
5.6.10
5.6.10.1
5.6.10.2
5.6.11
5.6.12
5.6.13
5.6.14
5.6.15
5.6.16
5.6.17
5.7.0-beta.1
5.7.0-beta.2
5.7.0
5.7.1
5.7.1.1
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.7.7
5.7.8
5.7.8.1
5.7.8.2
5.7.9
5.7.10
5.7.11
5.8.0
5.8.1
5.8.2
5.8.3
5.8.4
5.8.5
5.8.6
5.8.7
5.8.8
5.8.9
5.8.10
5.8.11
5.8.12
5.8.13
5.8.13.1
5.8.13.2
5.8.14
5.8.15
5.8.16
5.8.17
5.8.18
5.8.19
5.8.20
5.8.21
5.8.22
5.8.23
5.9.0-beta.1
5.9.0-beta.2
5.9.0
5.9.1
5.9.2
5.9.3
5.9.4
5.9.5
5.9.6
5.9.7
5.9.8
5.9.9
5.9.10
5.9.11
5.9.12

Database specific

last_known_affected_version_range 
"<= 5.9.12"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-c43v-4cr8-6mvp/GHSA-c43v-4cr8-6mvp.json"