CVE Daily

CVE-2018-20583

Cross-site scripting (XSS) vulnerability in the PHP League CommonMark library ve...

Medium CVSS 6.1

Overview

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).

CWE: CWE-79 Published: 2018-12-30T05:29:00.753
Risk analysis

This vulnerability is rated 🟡 MEDIUM.

  • CVSS: 6.1 (MEDIUM)
  • Detected tags: none (tag impact: LOW)

Recommended actions:

  • Prioritize remediation based on business criticality and exposure.
  • Limit exposure and increase monitoring until fixed.

Recommended tools

Tags