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CVE-2023-26920
December 12, 2023
fast-xml-parser before 4.1.2 allows proto for Prototype Pollution.
Affected Packages
fast-xml-parser (CDN_JS):
Affected version(s) >=1.0.0 <4.1.2
Fix Suggestion:
Update to version 4.1.2
org.webjars.npm:fast-xml-parser (JAVA):
Affected version(s) =4.0.0-beta.8 <4.1.2
Fix Suggestion:
Update to version 4.1.2
fast-xml-parser (NPM):
Affected version(s) >=1.0.0 <4.1.2
Fix Suggestion:
Update to version 4.1.2
Additional Notes
The description of this vulnerability differs from MITRE.
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
EPSS
Base Score:
0.2