CVE-2026-53473: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2026-53473 is a cross-site scripting (XSS) vulnerability in migration-planner-ui-app that allows an attacker to register a malicious discovery agent with a crafted credentialUrl containing JavaScript code. When an organizational user clicks this link, the malicious script executes in the user's browser, compromising their Red Hat Single Sign-On (SSO) session. This can lead to unauthorized cross-tenant data access and API actions. The vulnerability affects versions prior to 0.13.5 and has a high severity rating with a CVSS score of 7.3.
AI Analysis
Technical Summary
This vulnerability involves improper neutralization of input during web page generation in migration-planner-ui-app. An attacker can exploit this by registering a discovery agent with a specially crafted credentialUrl embedding JavaScript code. When clicked by an organizational user, the script executes within the user's browser session, compromising the Red Hat SSO session and potentially enabling unauthorized cross-tenant data access and API operations. The issue affects all versions before 0.13.5. No official patch or remediation level is currently stated in the vendor advisory, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of the victim's browser session, compromising the Red Hat SSO session. This can lead to unauthorized access to data across tenants 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 Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-53473 for current remediation guidance. Until an official fix is available, avoid clicking untrusted credentialUrl links in the migration-planner-ui-app interface and restrict registration of discovery agents to trusted sources only.
CVE-2026-53473: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Description
CVE-2026-53473 is a cross-site scripting (XSS) vulnerability in migration-planner-ui-app that allows an attacker to register a malicious discovery agent with a crafted credentialUrl containing JavaScript code. When an organizational user clicks this link, the malicious script executes in the user's browser, compromising their Red Hat Single Sign-On (SSO) session. This can lead to unauthorized cross-tenant data access and API actions. The vulnerability affects versions prior to 0.13.5 and has a high severity rating with a CVSS score of 7.3.
CVSS v3.1
Score 7.3high
Affected software
pkg:github/migration-planner-ui-appRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of input during web page generation in migration-planner-ui-app. An attacker can exploit this by registering a discovery agent with a specially crafted credentialUrl embedding JavaScript code. When clicked by an organizational user, the script executes within the user's browser session, compromising the Red Hat SSO session and potentially enabling unauthorized cross-tenant data access and API operations. The issue affects all versions before 0.13.5. No official patch or remediation level is currently stated in the vendor advisory, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of the victim's browser session, compromising the Red Hat SSO session. This can lead to unauthorized access to data across tenants 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 Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-53473 for current remediation guidance. Until an official fix is available, avoid clicking untrusted credentialUrl links in the migration-planner-ui-app interface and restrict registration of discovery agents to trusted sources only.
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: 06/10/2026, 14:50:07 UTC
Last enriched: 06/17/2026, 16:11:40 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 49
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