CVE-2026-53473
An attacker can register a malicious discovery agent with a specially crafted credentialUrl containing JavaScript code.
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.19% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- kubev2v/migration planner ui
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2026-53473Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2487107Issue Tracking, Third Party Advisory
- https://github.com/kubev2v/migration-planner-ui-app/pull/750Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.