High severity · published Mar 19, 2021
CVE-2021-21384
shescape is a simple shell escape package for JavaScript
7.8
CVSS
0.6%
EPSS
No
On KEV
Description
shescape is a simple shell escape package for JavaScript. In shescape before version 1.1.3, anyone using _Shescape_ to defend against shell injection may still be vulnerable against shell injection if the attacker manages to insert a into the payload. For an example see the referenced GitHub Security Advisory. The problem has been patched in version 1.1.3. No further changes are required.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SH
Shescape · Shescape Project
before 1.1.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21384
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21384
Patch
https://github.com/ericcornelissen/shescape/commit/07a069a66423809cbedd61d980c11ca44a29ea2b
Release Notes
https://github.com/ericcornelissen/shescape/releases/tag/v1.1.3
Exploit
https://github.com/ericcornelissen/shescape/security/advisories/GHSA-f2rp-38vg-j3gh
Product
https://www.npmjs.com/package/shescape
More from Shescape
9.8
CVE-2022-31179
Insufficient escaping of line feeds for CMD in shescape
9.8
CVE-2022-31180
Insufficient escaping of whitespace in shescape
8.6
CVE-2023-40185
Shescape on Windows escaping may be bypassed in threaded context
7.5
CVE-2022-25918
Regular Expression Denial of Service (ReDoS)
7.5
CVE-2022-36064
Shescape is a shell escape package for JavaScript