CVE-2026-53473: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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.
AI Analysis
Technical Summary
This vulnerability in migration-planner-ui-app allows an attacker to inject malicious JavaScript via a specially crafted credentialUrl during the registration of a discovery agent. When an organizational user interacts with this link, the embedded script executes in their browser session, enabling compromise of the Red Hat Single Sign-On session. This can lead to unauthorized access to data across tenants and unauthorized API operations. The vulnerability is classified as an improper neutralization of input during web page generation (XSS). It affects all versions before 0.13.5. No official patch or remediation level is stated in the vendor advisory, and no known exploits are reported in the wild as of the published date.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser session, compromising Red Hat Single Sign-On sessions. This can result in unauthorized cross-tenant data access and unauthorized API actions, posing a significant confidentiality and integrity risk. Availability is not impacted.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-53473 for current remediation guidance. Until a fix is available, avoid clicking untrusted credentialUrl links in the migration-planner-ui-app interface. Monitor vendor communications for updates on patches or official mitigations.
CVE-2026-53473: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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 v3.1
Score 7.3high
Affected software
pkg:github/migration-planner-ui-appAI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in migration-planner-ui-app allows an attacker to inject malicious JavaScript via a specially crafted credentialUrl during the registration of a discovery agent. When an organizational user interacts with this link, the embedded script executes in their browser session, enabling compromise of the Red Hat Single Sign-On session. This can lead to unauthorized access to data across tenants and unauthorized API operations. The vulnerability is classified as an improper neutralization of input during web page generation (XSS). It affects all versions before 0.13.5. No official patch or remediation level is stated in the vendor advisory, and no known exploits are reported in the wild as of the published date.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser session, compromising Red Hat Single Sign-On sessions. This can result in unauthorized cross-tenant data access and unauthorized API actions, posing a significant confidentiality and integrity risk. Availability is not impacted.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-53473 for current remediation guidance. Until a fix is available, avoid clicking untrusted credentialUrl links in the migration-planner-ui-app interface. Monitor vendor communications for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-06-09T17:03:29.627Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-53473","vendor":"Red Hat"}]
Threat ID: 6a29799fc9170919df2daedd
Added to database: 6/10/2026, 2:50:07 PM
Last enriched: 6/10/2026, 3:03:58 PM
Last updated: 6/10/2026, 4:11:59 PM
Views: 4
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