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  5. CVE-2021-21338

CVE-2021-21338: URL Redirection to Untrusted Site (Open Redirect)

March 23, 2021 (updated March 26, 2021)

Login Handling is susceptible to open redirection which allows attackers redirecting to arbitrary content, and conducting phishing attacks. No authentication is required in order to exploit this vulnerability.

References

  • nvd.nist.gov/vuln/detail/CVE-2021-21338
  • typo3.org/security/advisory/typo3-core-sa-2021-001

Code Behaviors & Features

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Affected versions

All versions starting from 6.2.0 before 6.2.57, all versions starting from 7.0.0 before 7.6.51, all versions starting from 8.0.0 before 8.7.40, all versions starting from 9.0.0 before 9.5.25, all versions starting from 10.0.0 before 10.4.14, all versions starting from 11.0.0 before 11.1.1

Fixed versions

  • 6.2.57
  • 7.6.51
  • 8.7.40
  • 9.5.25
  • 10.4.14
  • 11.1.1

Solution

Upgrade to versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 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-601: URL Redirection to Untrusted Site ('Open Redirect')

Source file

packagist/typo3/cms/CVE-2021-21338.yml

Spotted a mistake? Edit the file on GitLab.

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