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CVE-2020-25768: Improper Input Validation

October 7, 2020 (updated July 21, 2021)

Contao suffers from an Improper Input Validation flaw. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

References

  • community.contao.org/en/forumdisplay.php?4-Announcements
  • contao.org/en/security-advisories/insert-tag-injection-in-forms.html
  • nvd.nist.gov/vuln/detail/CVE-2020-25768

Code Behaviors & Features

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Affected versions

All versions starting from 4.0 before 4.4.52, all versions starting from 4.9.0 before 4.9.6, all versions starting from 4.10.0 before 4.10.1

Fixed versions

  • 4.4.52
  • 4.9.6
  • 4.10.1

Solution

Upgrade to versions 4.4.52, 4.9.6, 4.10.1 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

packagist/contao/core-bundle/CVE-2020-25768.yml

Spotted a mistake? Edit the file on GitLab.

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