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CVE-2020-13971: Cross-site Scripting

July 28, 2020 (updated July 31, 2020)

In Shopware, authenticated users are allowed to use the Mediabrowser fileupload feature to upload SVG images containing JavaScript. This leads to Persistent XSS. An uploaded image can be accessed without authentication.

References

  • docs.shopware.com/en/shopware-6-en/security-updates/security-update-07-2020
  • nvd.nist.gov/vuln/detail/CVE-2020-13971
  • www.shopware.com/en/changelog/

Code Behaviors & Features

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Affected versions

All versions before 6.2.3

Fixed versions

  • 6.2.3

Solution

Upgrade to version 6.2.3 or above.

Impact 5.4 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/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/shopware/platform/CVE-2020-13971.yml

Spotted a mistake? Edit the file on GitLab.

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