CVE-2021-37626

Description

### Impact It is possible for untrusted users to load arbitrary PHP files via insert tags. Installations are only affected if there are untrusted back end users. ### Patches Update to Contao 4.4.56, 4.9.18 or 4.11.7. ### Workarounds Disable the login for untrusted back end users. ### References https://contao.org/en/security-advisories/php-file-inclusion-via-insert-tags ### 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-2021-37626

To remediate CVE-2021-37626, upgrade the affected package to a fixed version below.

• —upgrade to 4.4.56 or later
• —upgrade to 4.4.56 or later

Is CVE-2021-37626 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• >= 4.0.0, < 4.4.56
• >= 4.0.0, < 4.4.56

CVSS scores

References (6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-37626
• PATCHgithub.com/contao/contao
• WEBcontao.org/en/security-advisories/php-file-inclusion-via-insert-tags.html
• WEBgithub.com/contao/contao/security/advisories/GHSA-r6mv-ppjc-4hgr