CVE-2019-19745
Unrestricted file uploads in Contao
Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server.
- Record
CVE-2019-19745- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server.
- Record
CVE-2019-19745- Updated
- 2026-11-02
EUVDEUVD-2019-0804 No score
Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server.
- Record
EUVD-2019-0804- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wjx8-cgrm-hh8p
Unrestricted file uploads in Contao
Impact
A back end user with access to the form generator can upload arbitrary files and execute them on the server.
Patches
Update to Contao 4.4.46 or 4.8.6.
Workarounds
Configure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.
References
https://contao.org/en/security-advisories/unrestricted-file-uploads
For more information
If you have any questions or comments about this advisory, open an issue in contao/contao.
- Record
GHSA-wjx8-cgrm-hh8p- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server.
- Record
CVE-2019-19745- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-wjx8-cgrm-hh8p
Unrestricted file uploads in Contao
Impact
A back end user with access to the form generator can upload arbitrary files and execute them on the server.
Patches
Update to Contao 4.4.46 or 4.8.6.
Workarounds
Configure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.
References
https://contao.org/en/security-advisories/unrestricted-file-uploads
For more information
If you have any questions or comments about this advisory, open an issue in contao/contao.
- Record
GHSA-wjx8-cgrm-hh8p- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
contao/core-bundlePackagist |
4.0.0 up to 4.4.46 | 4.4.46 |
contao/core-bundlePackagist |
4.5.0 up to 4.8.6 | 4.8.6 |
contao/contaoPackagist |
4.0.0 up to 4.4.46 | 4.4.46 |
contao/contaoPackagist |
4.5.0 up to 4.8.6 | 4.8.6 |
contao/core-bundlePackagist |
4.0.0 up to 4.4.46, plus listed versions 4.0.14.0.24.0.34.0.44.1.0 Show 45 moreShow less4.1.0-RC14.1.0-beta14.1.14.1.24.1.34.2.04.2.0-RC14.2.0-beta14.2.14.2.24.2.34.2.44.2.54.3.04.3.0-RC14.3.14.3.104.3.114.3.24.3.34.3.44.3.54.3.64.3.74.3.84.3.94.4.04.4.0-RC14.4.0-RC24.4.0-beta14.4.14.4.104.4.114.4.124.4.134.4.144.4.154.4.164.4.174.4.184.4.194.4.24.4.204.4.214.4.22 |
4.4.46 |
contao/core-bundlePackagist |
4.5.0 up to 4.8.6, plus listed versions 4.5.14.5.104.5.114.5.124.5.13 Show 45 moreShow less4.5.144.5.24.5.34.5.44.5.54.5.64.5.74.5.84.5.94.6.04.6.0-RC14.6.0-RC24.6.0-RC34.6.14.6.104.6.114.6.124.6.134.6.144.6.24.6.34.6.44.6.54.6.64.6.74.6.84.6.94.7.04.7.0-RC14.7.0-RC24.7.0-RC34.7.0-RC44.7.14.7.24.7.34.7.44.7.54.7.64.7.74.8.04.8.0-RC14.8.0-RC24.8.14.8.24.8.3 |
4.8.6 |
contao/contaoPackagist |
4.0.0 up to 4.4.46, plus listed versions 4.4.224.4.234.4.244.4.254.4.26 Show 19 moreShow less4.4.274.4.284.4.294.4.304.4.314.4.324.4.334.4.344.4.354.4.364.4.374.4.384.4.394.4.404.4.414.4.424.4.434.4.444.4.45 |
4.4.46 |
contao/contaoPackagist |
4.5.0 up to 4.8.6, plus listed versions 4.5.134.5.144.6.04.6.14.6.10 Show 32 moreShow less4.6.114.6.124.6.134.6.144.6.24.6.34.6.44.6.54.6.64.6.74.6.84.6.94.7.04.7.0-RC14.7.0-RC24.7.0-RC34.7.0-RC44.7.14.7.24.7.34.7.44.7.54.7.64.7.74.8.04.8.0-RC14.8.0-RC24.8.14.8.24.8.34.8.44.8.5 |
4.8.6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-19745 is a high vulnerability (CVSS 8.8) in Contao, published December 17, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.11%, the 66th percentile. Fixed in contao/core-bundle 4.4.46.
References
contao.org/en/news.html
github.com/contao/contao/security/advisories/GHSA-wjx8-cgrm-hh8p
nvd.nist.gov/vuln/detail/CVE-2019-19745
Left out here: 32 versions. The JSON record has them.