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CVE-2020-25911: Improper Restriction of XML External Entity Reference

November 1, 2021 (updated November 3, 2021)

A XML External Entity (XXE) vulnerability was discovered in the modRestServiceRequest component in MODX CMS 2.7.3 which can lead to an information disclosure or denial of service (DOS).

References

  • github.com/advisories/GHSA-vhfp-9wvj-gwvg
  • github.com/dahua966/Vul_disclose/blob/main/XXE_modxcms.md
  • github.com/modxcms/revolution/issues/15237
  • github.com/modxcms/revolution/pull/15238
  • github.com/modxcms/revolution/pull/15238/commits/1b7ffe02df30f05dbf67dd15e4d8101687c1585a
  • nvd.nist.gov/vuln/detail/CVE-2020-25911

Code Behaviors & Features

Detect and mitigate CVE-2020-25911 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 2.8.0

Fixed versions

  • 2.8.0

Solution

Upgrade to version 2.8.0 or above.

Impact 9.1 CRITICAL

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

Learn more about CVSS

Weakness

  • CWE-611: Improper Restriction of XML External Entity Reference

Source file

packagist/modx/revolution/CVE-2020-25911.yml

Spotted a mistake? Edit the file on GitLab.

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