What’s Vulnerable › Vulnerabilities

CVE-2026-53473: Migration-planner-ui-app: stored xss via javascript: url in agent credential link

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-10 · updated 2026-06-17
• Weakness: CWE-79

Description

A flaw was found in migration-planner-ui-app. An attacker can register a malicious discovery agent with a specially crafted credentialUrl containing JavaScript code. When an organizational user clicks this link in the user interface, the embedded malicious code executes within the user's browser session. This cross-site scripting (XSS) vulnerability allows the attacker to compromise the victim's Red Hat Single Sign-On (SSO) session, potentially leading to unauthorized cross-tenant data access and API actions.

Affected products

• Kubev2V Migration Planner Ui: before 0.13.5 — fixed in 0.13.5

How to fix

Upgrade to a fixed version: Kubev2V Migration Planner Ui 0.13.5. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/CVE-2026-53473
• https://bugzilla.redhat.com/show_bug.cgi?id=2487107
• https://github.com/kubev2v/migration-planner-ui-app/pull/750

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