GitHub Advisoryadvisory · npm

GHSA-2v5f-23xc-v9qr ansi_up cross-site scripting vulnerability

MEDIUM Published 2021-03-11 Modified 2025-11-04 Official page ↗
Aliases
CVE-2021-3377
Ecosystem
npm
Packages
ansi_up
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2021-03-11

Affected packages

• npm ansi_up: < 5.0.0 → fixed in 5.0.0

Description

The npm package ansi_up converts ANSI escape codes into HTML. In ansi_up v4, ANSI escape codes can be used to create HTML hyperlinks. Due to insufficient URL sanitization, this feature is affected by a cross-site scripting (XSS) vulnerability. This issue is fixed in v5.0.0.

Related

Alias · CVE (1)

  • CVE-2021-3377 The npm package ansi_up converts ANSI escape codes into HTML. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References