CVE-2026-53473Network attack vector

SSO session compromise via unrestricted credential URL

Published Jun 10, 2026 · Updated Jun 10, 2026

Stored cross-site scripting in KubeV2V Migration Planner UI before 0.13.5 allows remote authenticated users to run JavaScript in an SSO session. Three credential-link render sites pass an agent-supplied credentialUrl directly to a React Router Link target or anchor href without restricting the URL scheme. An organizational user must click the persisted link; the script then runs in the console.redhat.com origin with the user's SSO authority, exposing cross-tenant data and API actions.

CVSS severity7.3
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in KubeV2V Migration Planner UI before 0.13.5 allows remote authenticated users to run JavaScript in an SSO session. Three credential-link render sites pass an agent-supplied credentialUrl directly to a React Router Link target or anchor href without restricting the URL scheme. An organizational user must click the persisted link; the script then runs in the console.redhat.com origin with the user's SSO authority, exposing cross-tenant data and API actions.

The record

CVE
CVE-2026-53473
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
KubeV2V
Product
Migration Planner UI
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.13.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

KubeV2V · Migration Planner UIversion=0 <0.13.5

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.3Red Hat, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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