CVE-2020-25768

Description

### Impact It is possible to inject insert tags in front end forms which will be replaced when the page is rendered. ### Patches Update to Contao 4.4.52, 4.9.6 or 4.10.1. ### Workarounds Disable the front end login form and do not use form fields with array keys such as `fieldname[]`. ### References https://contao.org/en/security-advisories/insert-tag-injection-in-forms ### For more information If you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose).

How to fix CVE-2020-25768

To remediate CVE-2020-25768, upgrade the affected package to a fixed version below.

• —upgrade to 4.4.52 or later
• —upgrade to 4.4.52 or later

Is CVE-2020-25768 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• >= 4.0.0, < 4.4.52
• >= 4.0.0, < 4.4.52

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-25768
• PATCHgithub.com/contao/contao
• WEBcommunity.contao.org/en/forumdisplay.php?4-Announcements
• WEBcontao.org/en/security-advisories/insert-tag-injection-in-forms.html