Vulnerability · Published Jun 10, 2026 · Assigned by redhat

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

High 7.3

In plain English

A high-severity cross-site scripting in migration-planner-ui-app. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.2%top 91.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
	migration-planner-ui-app	0 – before 0.13.5

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References

https://access.redhat.com/security/cve/CVE-2026-53473 vdb-entry, x_refsource_REDHAT
RHBZ#2487107 issue-tracking, x_refsource_REDHAT
https://github.com/kubev2v/migration-planner-ui-app/pull/750