CVE-2021-23452

Prototype Pollution

This affects all versions of package x-assign. The global proto object can be polluted using the __proto__ object.

Affected

x-assign

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 SNYK

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.55% chance of exploitation in the next 30 days, 75th percentile

Published

2021-10-20

Updated

2024-09-16

Proof-of-concept exploits (1)

• https://snyk.io/vuln/SNYK-JS-XASSIGN-1759314

Security advisories

• https://runkit.com/embed/sq8qjwemyn8t
• advisories/GHSA-4mvj-rq4v-2fxw

References

• CVE Record
• NVD entry