CVE-2021-21384 is a shell injection vulnerability in the shescape JavaScript package, affecting versions prior to 1.1.3, where an attacker could bypass shell escape protections by inserting a backtick character into the payload. This vulnerability carries a CVSS score of 7.8 (HIGH), indicating that a low-privileged attacker could achieve high confidentiality, integrity, and availability impacts with low attack complexity. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the vulnerability has been patched in shescape version 1.1.3.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.1.3CPE matchmatch criteria | cpe:2.3:a:shescape_project:shescape:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.