CVE-2026-20258

MEDIUMNVD 5.47.1▲
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. NVD baseline CVSS 5.4; sources differ by 1.7.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

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

In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could store a malicious script in a classic dashboard HTML panel, causing unauthorized JavaScript code to execute in the browser of another user.

The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The low-privileged user should not be able to exploit the vulnerability at will.

CVSS v3
5.4
EG Score
7.1(medium)
EPSS
7.1%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 15, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

SVD-2026-0608 | Splunk Vulnerability Disclosure

https://advisory.splunk.com/advisories/SVD-2026-0608

Vendor Advisories for CVE-2026-20258(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 32× in last 7d / 135× 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 135 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20258?
CVE-2026-20258 is a medium vulnerability published on June 10, 2026. In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could store a malicious script in a classic…
When was CVE-2026-20258 disclosed?
CVE-2026-20258 was first published in the National Vulnerability Database on June 10, 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-2026-20258 actively exploited?
CVE-2026-20258 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-20258?
CVE-2026-20258 has a CVSS v3 base score of 5.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.1.
How do I remediate CVE-2026-20258?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20258, 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

Explore the affected products and dependency analysis for CVE-2026-20258

Explore →

Is Your Infrastructure Affected by CVE-2026-20258?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs