CVE-2019-19714
Insert tag injection in the Contao login module
CVE-2019-19714 is a medium vulnerability (CVSS 5.3) in Contao, published December 17, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.82%, the 57th percentile. Fixed in contao/core-bundle 4.8.6.
- Severity
- 5.3 MediumCVSS 3.1, NVD
- Exploit chance
- 0.82%EPSS, 57th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
4.8.6contao/core-bundle +3 more
Description
Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of Output. It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
contao/core-bundlePackagist | 4.8.4 up to 4.8.6 | 4.8.6 |
contao/contaoPackagist | 4.8.4 up to 4.8.6 | 4.8.6 |
contao/core-bundlePackagist | 4.8.4 up to 4.8.6, plus listed versions 4.8.5 | 4.8.6 |
contao/contaoPackagist | 4.8.4 up to 4.8.6, plus listed versions 4.8.5 | 4.8.6 |
What each source reports
NVD Score used
Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of Output. It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
- Record
CVE-2019-19714- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-116
- Updated
- 2026-11-02
CVE ListNo score
Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of Output. It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
- Record
CVE-2019-19714- Updated
- 2026-11-02
EUVDEUVD-2019-0796No score
Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of Output. It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
- Record
EUVD-2019-0796- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jc43-qrrp-98f5
Insert tag injection in the Contao login module
Impact
It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
Patches
Update to Contao 4.8.6.
Workarounds
None.
References
https://contao.org/en/security-advisories/insert-tag-injection-in-the-login-module
For more information
If you have any questions or comments about this advisory, open an issue in contao/contao.
- Record
GHSA-jc43-qrrp-98f5- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-116
- Updated
- 2026-11-02
OSV
Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of Output. It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
- Record
CVE-2019-19714- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-jc43-qrrp-98f5
Insert tag injection in the Contao login module
Impact
It is possible to inject insert tags into the login module which will be replaced when the page is rendered.
Patches
Update to Contao 4.8.6.
Workarounds
None.
References
https://contao.org/en/security-advisories/insert-tag-injection-in-the-login-module
For more information
If you have any questions or comments about this advisory, open an issue in contao/contao.
- Record
GHSA-jc43-qrrp-98f5- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-116
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
contao.org/en/news.html
github.com/contao/contao/security/advisories/GHSA-jc43-qrrp-98f5
nvd.nist.gov/vuln/detail/CVE-2019-19714