GitHub Advisoryadvisory · Packagist

GHSA-qx76-c53f-5c7q PHP League CommonMark vulnerable to Cross-Site Scripting (XSS)

MEDIUM Published 2022-05-14 Modified 2022-09-12 Official page ↗
Aliases
CVE-2018-20583
Ecosystem
Packagist
Packages
league/commonmark
Severity
Moderate
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2022-09-12

Affected packages

• Packagist league/commonmark: >= 0.15.6, < 0.18.1 → fixed in 0.18.1

Description

Cross-site scripting (XSS) vulnerability in the PHP League CommonMark library versions 0.15.6 through 0.18.x before 0.18.1 allows remote attackers to insert unsafe URLs into HTML (even if allow_unsafe_links is false) via a newline character (e.g., writing javascript as javascri%0apt).

Related

Alias · CVE (1)

  • CVE-2018-20583 Cross-site scripting (XSS) vulnerability in the PHP League CommonMark library versions 0.15.6 through 0.18.x before 0.18.1 allows remote… vulnerability

Weakness · CWE (1)

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

References