CVE-2026-53473

HIGHNVD 5.47.3▲
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. NVD baseline CVSS 5.4; sources differ by 1.9.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
5.4
EG Score
7.3(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 16, 2026

Advisory Details (3)

Auto-updated Jun 11, 2026
Patch available. Sources: redhat, github_pr.
github_pr Patch Available

ECOPROJECT-4725 | fix: prevent XSS via credentialUrl validation

Patch available: kubev2v/migration-planner-ui-app v0.13.5 (PR #750 merged 2026-06-03)

https://github.com/kubev2v/migration-planner-ui-app/pull/750
redhat

2487107 – (CVE-2026-53473) CVE-2026-53473 migration-planner-ui-app: Stored XSS via javascript: URL in Agent Credential Link

https://bugzilla.redhat.com/show_bug.cgi?id=2487107
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-53473

Vendor Advisories for CVE-2026-53473(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 256 total refreshes for this CVE.

  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-14 04:16 UTCEG score recompute
  3. 2026-09-14 04:16 UTCGHSA enrichment
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-10 09:35 UTCEPSS rescore
  7. 2026-09-08 22:01 UTCEPSS rescore
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-04 05:06 UTCEPSS rescore
  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-08-31 00:18 UTCEG score recompute
  15. 2026-08-31 00:18 UTCGHSA enrichment
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 01:22 UTCEPSS rescore
  18. 2026-08-28 21:41 UTCEPSS rescore
  19. 2026-08-27 14:25 UTCEPSS rescore
  20. 2026-08-26 14:46 UTCEPSS rescore
  21. 2026-08-25 13:49 UTCEPSS rescore
  22. 2026-08-25 00:25 UTCEG score recompute
  23. 2026-08-25 00:24 UTCGHSA enrichment
  24. 2026-08-23 22:31 UTCGHSA enrichment
  25. 2026-08-23 10:48 UTCEG score recompute
Show 75 more
  1. 2026-08-23 10:48 UTCGHSA enrichment
  2. 2026-08-21 23:49 UTCEPSS rescore
  3. 2026-08-21 19:34 UTCGHSA enrichment
  4. 2026-08-21 07:56 UTCEG score recompute
  5. 2026-08-21 07:56 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 20:31 UTCGHSA enrichment
  8. 2026-08-20 08:53 UTCEG score recompute
  9. 2026-08-20 08:53 UTCGHSA enrichment
  10. 2026-08-19 17:04 UTCEPSS rescore
  11. 2026-08-19 14:57 UTCEG score recompute
  12. 2026-08-19 14:57 UTCGHSA enrichment
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 11:03 UTCGHSA enrichment
  16. 2026-08-16 23:38 UTCEG score recompute
  17. 2026-08-16 23:38 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 11:25 UTCEG score recompute
  20. 2026-08-16 11:25 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-16 00:00 UTCGHSA enrichment
  23. 2026-08-15 10:56 UTCEG score recompute
  24. 2026-08-15 10:56 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
  26. 2026-08-14 21:06 UTCGHSA enrichment
  27. 2026-08-14 09:41 UTCGHSA enrichment
  28. 2026-08-13 22:16 UTCEG score recompute
  29. 2026-08-13 22:16 UTCGHSA enrichment
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-13 10:45 UTCGHSA enrichment
  32. 2026-08-12 23:20 UTCEG score recompute
  33. 2026-08-12 23:20 UTCGHSA enrichment
  34. 2026-08-12 13:51 UTCEPSS rescore
  35. 2026-08-12 11:55 UTCGHSA enrichment
  36. 2026-08-12 00:29 UTCEG score recompute
  37. 2026-08-12 00:29 UTCGHSA enrichment
  38. 2026-08-11 13:04 UTCGHSA enrichment
  39. 2026-08-11 01:38 UTCEG score recompute
  40. 2026-08-11 01:38 UTCGHSA enrichment
  41. 2026-08-11 00:00 UTCEPSS rescore
  42. 2026-08-10 14:13 UTCGHSA enrichment
  43. 2026-08-10 02:48 UTCGHSA enrichment
  44. 2026-08-09 15:23 UTCEG score recompute
  45. 2026-08-09 15:23 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-09 03:58 UTCEG score recompute
  48. 2026-08-09 03:58 UTCGHSA enrichment
  49. 2026-08-08 16:37 UTCEPSS rescore
  50. 2026-08-08 16:33 UTCGHSA enrichment
  51. 2026-08-08 05:07 UTCGHSA enrichment
  52. 2026-08-07 17:42 UTCEG score recompute
  53. 2026-08-07 17:42 UTCGHSA enrichment
  54. 2026-08-07 06:17 UTCGHSA enrichment
  55. 2026-08-06 18:52 UTCEG score recompute
  56. 2026-08-06 18:52 UTCGHSA enrichment
  57. 2026-08-06 13:47 UTCEPSS rescore
  58. 2026-08-06 07:27 UTCGHSA enrichment
  59. 2026-08-05 20:01 UTCEG score recompute
  60. 2026-08-05 20:01 UTCGHSA enrichment
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-04 15:55 UTCEG score recompute
  63. 2026-08-04 15:55 UTCGHSA enrichment
  64. 2026-08-04 15:10 UTCEPSS rescore
  65. 2026-08-04 10:39 UTCEPSS rescore
  66. 2026-08-04 02:16 UTCGHSA enrichment
  67. 2026-08-03 14:51 UTCEG score recompute
  68. 2026-08-03 14:51 UTCGHSA enrichment
  69. 2026-08-03 10:36 UTCEPSS rescore
  70. 2026-08-02 19:59 UTCGHSA enrichment
  71. 2026-08-02 08:34 UTCEG score recompute
  72. 2026-08-02 08:34 UTCGHSA enrichment
  73. 2026-08-02 02:27 UTCEPSS rescore
  74. 2026-08-01 21:08 UTCGHSA enrichment
  75. 2026-08-01 09:43 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-53473?
CVE-2026-53473 is a high vulnerability published on June 10, 2026. 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…
When was CVE-2026-53473 disclosed?
CVE-2026-53473 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53473 actively exploited?
CVE-2026-53473 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 91.5% of all scored CVEs.
What is the CVSS score of CVE-2026-53473?
CVE-2026-53473 has a CVSS v3 base score of 5.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.3.
How do I remediate CVE-2026-53473?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53473, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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