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  5. CVE-2020-26227

CVE-2020-26227: Cross-site Scripting

November 23, 2020 (updated December 1, 2020)

TYPO3 is an open source PHP based web content management system. In TYPO3 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-26227
  • typo3.org/security/advisory/typo3-core-sa-2020-010

Code Behaviors & Features

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Affected versions

All versions starting from 6.2.0 before 6.2.54, all versions starting from 7.6.0 before 7.6.48, all versions starting from 8.7.0 before 8.7.38, all versions starting from 9.0.0 before 9.5.23, all versions starting from 10.0.0 before 10.4.10

Fixed versions

  • 9.5.23
  • 10.4.10

Solution

Upgrade to versions 9.5.23, 10.4.10 or above.

Impact 6.1 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/typo3/cms-core/CVE-2020-26227.yml

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