How severe is CVE-2026-53473?

CVE-2026-53473 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-53473 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53473?

CVE-2026-53473 affects Kubev2v Migration Planner Ui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-53473?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-53473 have an EU (EUVD) identifier?

Yes. CVE-2026-53473 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36029.

When was CVE-2026-53473 published?

CVE-2026-53473 was published on 2026-06-10 and last updated on 2026-06-17.

CVE-2026-53473

CVE-2026-53473 is a high-severity vulnerability in Kubev2v Migration Planner Ui with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36029
Weakness: CWE-79
Affected product: Kubev2v Migration Planner Ui
Published: 2026-06-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-53473?: 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.
How severe is CVE-2026-53473?: CVE-2026-53473 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-53473 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53473?: CVE-2026-53473 affects Kubev2v Migration Planner Ui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-53473?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-53473 have an EU (EUVD) identifier?: Yes. CVE-2026-53473 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36029.
When was CVE-2026-53473 published?: CVE-2026-53473 was published on 2026-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kubev2v:migration_planner_ui:*:*:*:*:*:*:*:*

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