Lack of data validation In contao/core-bundle
Description
Contao: Unencoded insert tags in the frontend
Impact
It is possible to inject insert tags via the form generator if the submitted form data is output on the page in a specific way.
Patches
Update to Contao 4.13.40 or 5.3.4.
Workarounds
Do not output the submitted form data on the website.
References
https://contao.org/en/security-advisories/insert-tag-injection-via-the-form-generator
For more information
If you have any questions or comments about this advisory, open an issue in contao/contao.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 packagist | 4.13.40, 5.3.4 |
Aliases
1. 2. 3. 4. 5.
References
1. 2. 3. 4.