Prototype pollution in fast-xml-parser - CVE-2023-26920

Vulnerability identifier: #VU80772

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-26920

CWE-ID: CWE-1321

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

fast-xml-parser
IBM Cloud Pak for Watson AIOps
QRadar User Behavior Analytics
App Connect Enterprise Certified Container
Cloud Pak for Data

Install updates from vendor's website.

fast-xml-parser - update to 4.1.2
IBM Cloud Pak for Watson AIOps - update to 4.1.1
QRadar User Behavior Analytics - update to 4.1.13
Cloud Pak for Data - update to 4.8.5
App Connect Enterprise Certified Container - addressed in versions 5.0.5, 8.0.0

• https://www.ibm.com/support/pages/node/7029864

• Multiple vulnerabilities in IBM QRadar User Behavior Analytics
• Prototype pollution in IBM App Connect Enterprise Certified Container
• Multiple vulnerabilities in IBM Cloud Pak for Watson AIOps
• IBM Cloud Pak for Data update for Natural Intelligence fast-xml-parser
• Prototype Pollution in fast-xml-parser