7.3

CVE-2026-53473: kubev2v migration_planner_ui Cross-site Scripting

CVSS: 7.3v3.1HighAnalyzed
Published 10-06-2026Last modified 10-06-2026
Open JSON

Vulnerability summary

CVE-2026-53473 is a high (CVSS 7.3) Cross-site Scripting vulnerability in kubev2v migration_planner_ui. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.6% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
0%100%
Low · +0.16 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-06-2026
    PublishedVulnerability first disclosed.
  2. 10-06-2026
    Last modifiedVulnerability information updated.

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 metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

+0.16 pp

From 0.19% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Kubev2v1 product

1 vendor · 1 product

References

3 links