Cyber Resilience

CVE-2021-21384

MediumPublic PoC

Published: 19 March 2021

Published
19 March 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N
EPSS Score 0.0016 37.4th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-21384 is a medium-severity Argument Injection (CWE-88) vulnerability in Shescape Project Shescape. Its CVSS base score is 6.3 (Medium).

Operationally, ranked at the 37.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

an example see the referenced GitHub Security Advisory. The problem has been patched in version 1.1.3. No further changes are required.

CWE(s)
CWE-88

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

shescape project
shescape
≤ 1.1.3

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References