CVE-2021-20088 : Improperly Controlled Modification of Object Prototype Attributes ('Prototype Po

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in mootools-more 1.6.0 allows a malicious user to inject properties into Object.prototype.

Published 2021-04-23 18:15:08

Updated 2021-05-01 04:14:33

Source Tenable Network Security, Inc.

View at NVD, CVE.org

Products affected by CVE-2021-20088

Mootools » Mootools-more » Version: 1.6.0
cpe:2.3:a:mootools:mootools-more:1.6.0:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-20088

EPSS FAQ

0.11%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-20088

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2021-20088

https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/mootools-more.md

client-side-prototype-pollution/mootools-more.md at master · BlackFan/client-side-prototype-pollution · GitHub
Exploit;Third Party Advisory

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Vulnerability Details : CVE-2021-20088

Products affected by CVE-2021-20088

Exploit prediction scoring system (EPSS) score for CVE-2021-20088

CVSS scores for CVE-2021-20088

References for CVE-2021-20088