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CVE-2018-20757: MODX Revolution allows XSS through extended user fields

May 14, 2022 (updated July 11, 2025)

MODX Revolution through v2.7.0-pl allows XSS via an extended user field such as a Container name or Attribute name.

References

  • github.com/advisories/GHSA-gm2g-65wj-43g8
  • github.com/modxcms/revolution
  • github.com/modxcms/revolution/commit/489b13c61673ea0b19124e18cf1f3e7673f8aa64
  • github.com/modxcms/revolution/issues/14104
  • nvd.nist.gov/vuln/detail/CVE-2018-20757

Code Behaviors & Features

Detect and mitigate CVE-2018-20757 with GitLab Dependency Scanning

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Affected versions

All versions before 2.7.1-pl

Fixed versions

  • 2.7.1-pl

Solution

Upgrade to version 2.7.1-pl or above.

Impact 6.1 MEDIUM

CVSS:3.0/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/modx/revolution/CVE-2018-20757.yml

Spotted a mistake? Edit the file on GitLab.

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