Cross-site scripting in Express - CVE-2024-43796

Vulnerability identifier: #VU97209

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green

CVE-ID: CVE-2024-43796

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Express
IBM Business Automation Workflow
IBM Cloud Pak for Security
IBM Cloud Transformation Advisor
IBM Fusion HCI
IBM Watson Knowledge Catalog in Cloud Pak for Data
Splunk User Behavior Analytics (UBA)
IBM Maximo Application Suite - AI Broker
Oracle Communications Network Analytics Data Director
IBM Process Mining
Qradar Advisor
Unified OSS Console Assurance Monitoring (UOCAM)
IBM Watson Discovery for IBM Cloud Pak for Data
IBM Decision Optimization for Cloud Pak for Data
IBM Maximo Application Suite
IBM Cloud Pak for Business Automation
IBM Observability with Instana
Data Virtualization (DV) on Cloud Pak for Data (CPD)
Watson Query on Cloud Pak for Data
Maximo Application Suite - IoT Component
Maximo Application Suite - Monitor Component
Business Automation Insights
IBM Application Suite - IBM Asset Data Dictionary Component
Truststore Manager
Security QRadar EDR
Cognos Dashboards on Cloud Pak for Data
watsonx Assistant Cartridge
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component
QRadar Log Source Management App
Db2 Big SQL
QRadar Suite
IBM Security QRadar Analyst Workflow
IBM Cloud Pak System
IBM Edge Application Manager
JD Edwards EnterpriseOne Tools
Migration Toolkit for Containers
Red Hat OpenShift Container Platform
Cloud Pak for Data
IBM QRadar Data Synchronization App
Event Streams
Communications Unified Assurance
Fedora
Ubuntu
Red Hat OpenShift Serverless
OpenShift Service Mesh
OpenShift Data Foundation (formerly OpenShift Container Storage)
Network Observability plugin for the Openshift Console
Red Hat OpenShift GitOps
QRadar Pulse App
node-express (Ubuntu package)
chromium
IBM App Connect Enterprise

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in response.redirect() method. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Install updates from vendor's website.

• https://github.com/expressjs/express/security/advisories/GHSA-qw6h-vgh9-j6wx
• https://github.com/expressjs/express/commit/54271f69b511fea198471e6ff3400ab805d6b553