The package cached-path-relative before 1.1.0 are vulnerable to Prototype Pollution via the cache variable that is set as {} instead of Object.create(null) in the cachedPathRelative function, which allows access to the parent prototype properties when the object is used to create the cached relative path. When using the origin path as __proto__, the attribute of the object is accessed instead of a path. **Note:** This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-CACHEDPATHRELATIVE-72573
Published 2022-01-21 20:15:08
Updated 2023-02-03 19:16:17
Source Snyk
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-23518

0.94%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 83 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-23518

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST
7.3
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
3.9
3.4
Snyk

CWE ids for CVE-2021-23518

References for CVE-2021-23518

Products affected by CVE-2021-23518

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