Bidirectional Unicode Text Vulnerability: Exploiting Code Review with Invisible Source Code

CVE-2021-22567 · LOW Severity

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

Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign. An attacker could embed a source that is invisible to a code reviewer that modifies the behavior of a program in unexpected ways.

Learn more about our Web Application Penetration Testing UK.