GHSA-9fx4-7cmj-47vg

Suggest an improvement
Source
https://github.com/advisories/GHSA-9fx4-7cmj-47vg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9fx4-7cmj-47vg/GHSA-9fx4-7cmj-47vg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-9fx4-7cmj-47vg
Aliases
Published
2026-07-02T19:48:08Z
Modified
2026-09-10T03:51:11Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Mautic has Server-Side Template Injection (SSTI) in Theme Templates
Details

Summary

A Server-Side Template Injection (SSTI) vulnerability exists in Mautic's theme engine. The platform renders uploaded Twig templates without a sandbox or strict function restrictions. Authenticated users with permissions to create or upload themes can abuse this to execute arbitrary code.

Impact

An authenticated user with theme upload and creation privileges can bypass boundaries to execute arbitrary system commands on the hosting server (Remote Code Execution) or access restricted system files and configuration settings.

Patched Versions

This security issue has been addressed in the following releases:

  • 7.1.2
  • 6.0.9
  • 5.2.11

For users on Mautic 4.x, this fix is available in:

Mautic strongly recommend upgrading to a patched version immediately.

Workarounds

There are no official workarounds. To mitigate this vulnerability without upgrading, restrict theme upload and creation permissions (core:themes:create) to only highly trusted administrators.

Database specific 
{
    "cwe_ids": [
        "CWE-1336"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-02T19:48:08Z",
    "nvd_published_at": "2026-05-29T11:16:17Z",
    "severity": "CRITICAL"
}
References

Affected packages

Packagist / mautic/core

Package

Name
mautic/core
Purl
pkg:composer/mautic/core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.3.0

Affected versions

1.*
1.3.0
1.3.1
1.4.0
1.4.1
2.*
2.0.0
2.0.1
2.1.0
2.1.1
2.2.0
2.2.1
2.3.0
2.4.0
2.5.0
2.5.1
2.6.0
2.6.1
2.7.0
2.7.1
2.8.0
2.8.1
2.8.2
2.9.0-beta
2.9.0
2.9.1
2.9.2
2.10.0-beta
2.10.0
2.10.1
2.11.0-beta
2.11.0
2.12.0-beta
2.12.0
2.12.1-beta
2.12.1
2.12.2-beta
2.12.2
2.13.0-beta
2.13.0
2.13.1
2.14.0-beta
2.14.0
2.14.1-beta
2.14.1
2.14.2-beta
2.14.2
2.15.0-beta
2.15.0
2.15.1-beta
2.15.1
2.15.2-beta
2.15.2
2.15.3-beta
2.15.3
2.16.0-beta
2.16.0
2.16.1-beta
2.16.1
2.16.2-beta
2.16.2
2.16.3-beta
2.16.3
2.16.4
2.16.5
3.*
3.0.0-alpha
3.0.0-beta
3.0.0-beta2
3.0.0
3.0.1
3.0.2-rc
3.0.2
3.1.0-rc
3.1.0
3.1.1-rc
3.1.1
3.1.2-rc
3.1.2
3.2.0-rc
3.2.0
3.2.1
3.2.2-rc
3.2.2
3.2.3
3.2.4
3.2.5-rc
3.2.5
3.3.0-rc
3.3.0
3.3.1
3.3.2-rc
3.3.2
3.3.3-rc
3.3.3
3.3.4
3.3.5
4.*
4.0.0-alpha1
4.0.0-beta
4.0.0-rc
4.0.0
4.0.1
4.0.2
4.1.0
4.1.1
4.1.2
4.2.0-rc
4.2.0-rc1
4.2.0
4.2.1
4.2.2
4.3.0-beta
4.3.0-rc
4.3.0
4.3.1
4.4.0-beta
4.4.0
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.4.10
4.4.11
4.4.12
4.4.13
5.*
5.0.0-alpha
5.0.0-alpha1
5.0.0-beta1
5.0.0-beta2
5.0.0-rc1
5.0.0-rc2
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.1.1
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.2.11
6.*
6.0.0-alpha
6.0.0-beta2
6.0.0-rc
6.0.0
6.0.1
6.0.2
6.0.3
6.0.4
6.0.5
6.0.6
6.0.7
6.0.8
6.0.9
7.*
7.0.0-alpha
7.0.0-beta
7.0.0-rc
7.0.0-rc2
7.0.0
7.0.1
7.0.2
7.1.0-rc
7.1.0
7.1.1
7.1.2
7.1.3
7.2.0-rc
7.2.0-rc2
7.2.0

Database specific

last_known_affected_version_range 
"< 4.4.13"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9fx4-7cmj-47vg/GHSA-9fx4-7cmj-47vg.json"

Packagist / mautic/core

Package

Name
mautic/core
Purl
pkg:composer/mautic/core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0
Fixed
5.2.11

Affected versions

5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.1.1
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9fx4-7cmj-47vg/GHSA-9fx4-7cmj-47vg.json"

Packagist / mautic/core

Package

Name
mautic/core
Purl
pkg:composer/mautic/core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.0.9

Affected versions

6.*
6.0.0
6.0.1
6.0.2
6.0.3
6.0.4
6.0.5
6.0.6
6.0.7
6.0.8

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9fx4-7cmj-47vg/GHSA-9fx4-7cmj-47vg.json"

Packagist / mautic/core

Package

Name
mautic/core
Purl
pkg:composer/mautic/core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
7.0.0
Fixed
7.1.2

Affected versions

7.*
7.0.0
7.0.1
7.0.2
7.1.0-rc
7.1.0
7.1.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9fx4-7cmj-47vg/GHSA-9fx4-7cmj-47vg.json"