Advisory Database
  • Advisories
  • Dependency Scanning
  1. gem
  2. ›
  3. gon
  4. ›
  5. CVE-2020-25739

CVE-2020-25739: Cross-site Scripting

September 23, 2020 (updated October 5, 2020)

An issue was discovered in the gon gem for Ruby. MultiJson does not honor the escape_mode parameter to escape fields as an XSS protection mechanism. To mitigate, json_dumper.rb in gon now applies XSS escaping by default without relying on MultiJson.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-25739

Code Behaviors & Features

Detect and mitigate CVE-2020-25739 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 6.4.0

Fixed versions

  • 6.4.0

Solution

Upgrade to version 6.4.0 or above.

Impact 6.1 MEDIUM

CVSS:3.1/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

gem/gon/CVE-2020-25739.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:16:10 +0000.