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CVE-2024-4350: Concrete CMS Stored Cross-site Scripting vulnerability

August 12, 2024 (updated January 21, 2025)

Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation.

References

  • documentation.concretecms.org/9-x/developers/introduction/version-history/933-release-notes?pk_vid=e367a434ef4830491723060415d52041
  • documentation.concretecms.org/developers/introduction/version-history/8518-release-notes?pk_vid=e367a434ef4830491723055758d52041
  • github.com/advisories/GHSA-q5wx-m95r-4cgc
  • github.com/concretecms/concretecms
  • github.com/concretecms/concretecms/commit/55e485e06b0b3342613a55af6a7c61d939d2ccb5
  • github.com/concretecms/concretecms/commit/c08d9671cec4e7afdabb547339c4bc0bed8eab06
  • github.com/concretecms/concretecms/pull/12166
  • nvd.nist.gov/vuln/detail/CVE-2024-4350

Code Behaviors & Features

Detect and mitigate CVE-2024-4350 with GitLab Dependency Scanning

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Affected versions

All versions starting from 9.0.0RC1 before 9.3.3, all versions before 8.5.18

Fixed versions

  • 8.5.18
  • 9.3.3

Solution

Upgrade to versions 8.5.18, 9.3.3 or above.

Impact 4.8 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/concrete5/concrete5/CVE-2024-4350.yml

Spotted a mistake? Edit the file on GitLab.

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