CVE-2026-54395

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a crafted searcheventinfo value can restore encoded quote characters and break out of the JavaScript string. An attacker could craft a malicious URL that, when opened by a victim using the UiBeta event index, executes arbitrary JavaScript in the victim’s browser in the context of the MISP instance. The issue is fixed by encoding the value as a JavaScript string literal with json_encode() before applying HTML escaping at the attribute layer.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
16.9%
KEV
Not listed

Published

June 12, 2026

Last Modified

June 15, 2026

Advisory Details (1)

Auto-updated Jun 19, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit b865deb036ca (MISP/MISP)

Patch available: MISP/MISP v2.5.40 (contains commit b865deb036ca)

https://github.com/MISP/MISP/commit/b865deb036ca82dab272be260798f562034ba9ae

Vendor Advisories for CVE-2026-54395(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 24× in last 7d / 85× 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.

  1. 2026-07-07 00:57 UTCEG score recompute
  2. 2026-07-07 00:57 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 09:39 UTCEG score recompute
  8. 2026-07-05 09:39 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 10:29 UTCEG score recompute
  12. 2026-07-04 10:29 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 07:28 UTCEG score recompute
  16. 2026-07-03 07:28 UTCGHSA enrichment
  17. 2026-07-02 05:25 UTCEG score recompute
  18. 2026-07-02 05:25 UTCGHSA enrichment
  19. 2026-07-01 15:07 UTCEPSS rescore
  20. 2026-07-01 06:32 UTCEG score recompute
  21. 2026-07-01 06:32 UTCGHSA enrichment
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 07:42 UTCEG score recompute
  24. 2026-06-30 07:42 UTCGHSA enrichment
  25. 2026-06-29 14:06 UTCEPSS rescore
Show 60 more
  1. 2026-06-29 14:06 UTCEPSS rescore
  2. 2026-06-29 08:49 UTCEG score recompute
  3. 2026-06-29 08:49 UTCGHSA enrichment
  4. 2026-06-28 14:07 UTCEPSS rescore
  5. 2026-06-28 09:44 UTCEG score recompute
  6. 2026-06-28 09:44 UTCGHSA enrichment
  7. 2026-06-28 04:56 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 10:54 UTCEG score recompute
  10. 2026-06-27 10:54 UTCGHSA enrichment
  11. 2026-06-27 03:08 UTCEPSS rescore
  12. 2026-06-26 12:03 UTCEG score recompute
  13. 2026-06-26 12:03 UTCGHSA enrichment
  14. 2026-06-25 13:49 UTCEPSS rescore
  15. 2026-06-25 09:41 UTCEG score recompute
  16. 2026-06-25 09:41 UTCGHSA enrichment
  17. 2026-06-24 14:05 UTCEPSS rescore
  18. 2026-06-24 10:51 UTCEG score recompute
  19. 2026-06-24 10:50 UTCGHSA enrichment
  20. 2026-06-23 21:33 UTCEPSS rescore
  21. 2026-06-23 21:33 UTCEPSS rescore
  22. 2026-06-23 11:58 UTCEG score recompute
  23. 2026-06-23 11:58 UTCGHSA enrichment
  24. 2026-06-22 14:25 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
  26. 2026-06-22 13:08 UTCEG score recompute
  27. 2026-06-22 13:08 UTCGHSA enrichment
  28. 2026-06-21 14:56 UTCEPSS rescore
  29. 2026-06-21 14:56 UTCEPSS rescore
  30. 2026-06-21 14:07 UTCEG score recompute
  31. 2026-06-21 14:07 UTCGHSA enrichment
  32. 2026-06-21 01:59 UTCEPSS rescore
  33. 2026-06-21 01:59 UTCEPSS rescore
  34. 2026-06-20 13:51 UTCEG score recompute
  35. 2026-06-20 13:51 UTCGHSA enrichment
  36. 2026-06-19 19:26 UTCEPSS rescore
  37. 2026-06-19 19:26 UTCEPSS rescore
  38. 2026-06-19 15:00 UTCEG score recompute
  39. 2026-06-19 15:00 UTCGHSA enrichment
  40. 2026-06-18 17:52 UTCEPSS rescore
  41. 2026-06-18 17:52 UTCEPSS rescore
  42. 2026-06-18 15:59 UTCEG score recompute
  43. 2026-06-18 15:58 UTCGHSA enrichment
  44. 2026-06-17 17:53 UTCEPSS rescore
  45. 2026-06-17 17:07 UTCEG score recompute
  46. 2026-06-17 17:07 UTCGHSA enrichment
  47. 2026-06-16 18:17 UTCEG score recompute
  48. 2026-06-16 18:17 UTCGHSA enrichment
  49. 2026-06-16 17:53 UTCEPSS rescore
  50. 2026-06-15 19:26 UTCEG score recompute▲ 5.30
  51. 2026-06-15 19:26 UTCGHSA enrichment
  52. 2026-06-15 19:19 UTCMITRE cvelistV5CVSS v3 → 5.3 · CVSS v4 → 5.3
  53. 2026-06-15 17:49 UTCEPSS rescore
  54. 2026-06-15 17:49 UTCEPSS rescore
  55. 2026-06-15 16:27 UTCEG score recompute
  56. 2026-06-15 16:27 UTCGHSA enrichment
  57. 2026-06-14 23:18 UTCEPSS rescore
  58. 2026-06-13 23:00 UTCEPSS rescore
  59. 2026-06-12 22:11 UTCEG score recompute
  60. 2026-06-12 22:11 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-54395?
CVE-2026-54395 is a medium vulnerability published on June 12, 2026. MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a…
When was CVE-2026-54395 disclosed?
CVE-2026-54395 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54395 actively exploited?
CVE-2026-54395 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54395?
CVE-2026-54395 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-54395?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54395, 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.

Dependency Blast Radius

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