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CVE-2019-12747: TYPO3 Vulnerable to Insecure Deserialization

May 24, 2022 (updated January 28, 2026)

TYPO3 8.x through 8.7.26 and 9.x through 9.5.7 allows Deserialization of Untrusted Data.

References

  • github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-12747.yaml
  • github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-12747.yaml
  • github.com/TYPO3-CMS/core
  • github.com/advisories/GHSA-86hp-xrhj-fhpq
  • nvd.nist.gov/vuln/detail/CVE-2019-12747
  • typo3.org/cms/release-news/typo3-8-release-notes
  • typo3.org/security/advisory/typo3-core-sa-2019-020

Code Behaviors & Features

Detect and mitigate CVE-2019-12747 with GitLab Dependency Scanning

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Affected versions

All versions starting from 8.0.0 before 8.7.27, all versions starting from 9.0.0 before 9.5.8

Fixed versions

  • 8.7.27
  • 9.5.8

Solution

Upgrade to versions 8.7.27, 9.5.8 or above.

Impact 8.8 HIGH

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

Learn more about CVSS

Weakness

  • CWE-502: Deserialization of Untrusted Data

Source file

packagist/typo3/cms-core/CVE-2019-12747.yml

Spotted a mistake? Edit the file on GitLab.

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