Prototype Pollution Vulnerability in fast-xml-parser by Natural Intelligence
CVE-2023-26920

6.5MEDIUM

Key Information:

Vendor

Naturalintelligence

Status
Fast Xml Parser
Vendor
CVE Published:
12 December 2023

What is CVE-2023-26920?

The fast-xml-parser package prior to version 4.1.2 contains a vulnerability that permits the alteration of JavaScript object prototypes through the use of the proto property. This can lead to serious security implications, allowing an attacker to manipulate object behavior, potentially enabling unauthorized access or exploitation of the application. Users of affected versions are advised to update to the latest version to mitigate risks associated with this vulnerability.

References

https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5...
https://github.com/advisories/GHSA-793h-6f7r-6qvm
https://github.com/NaturalIntelligence/fast-xml-parser/co...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.