CVE-2026-8078

MEDIUMNVD 4.84.8—
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory published 2026-06-08. NVD baseline CVSS 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.8Exploit: NoneExposed: 0

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

Stored cross-site scripting in the global settings change log in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript in changelog messages that executes in other users' browsers when they view the Activate Changes page or Audit log.

CVSS v3
4.8
EG Score
4.8(high)
EPSS
3.9%
KEV
Not listed

Published

June 8, 2026

Last Modified

June 8, 2026

Advisory Details (1)

Auto-updated Jun 17, 2026
No patch confirmed yet.
generic

Werk #17992: Fix stored XSS in global settings change log

https://checkmk.com/werk/17992

Vendor Advisories for CVE-2026-8078(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 18× in last 7d / 82× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-05 17:54 UTCEG score recompute
  4. 2026-07-05 17:54 UTCGHSA enrichment
  5. 2026-07-05 02:31 UTCEPSS rescore
  6. 2026-07-05 02:30 UTCEPSS rescore
  7. 2026-07-04 15:11 UTCEG score recompute
  8. 2026-07-04 15:10 UTCGHSA enrichment
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-03 09:30 UTCEG score recompute
  12. 2026-07-03 09:29 UTCGHSA enrichment
  13. 2026-07-02 04:28 UTCEG score recompute
  14. 2026-07-02 04:28 UTCGHSA enrichment
  15. 2026-07-01 15:07 UTCEPSS rescore
  16. 2026-07-01 03:29 UTCEG score recompute
  17. 2026-07-01 03:29 UTCGHSA enrichment
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 02:29 UTCEG score recompute
  20. 2026-06-30 02:28 UTCGHSA enrichment
  21. 2026-06-29 14:06 UTCEPSS rescore
  22. 2026-06-29 01:29 UTCEG score recompute
  23. 2026-06-29 01:29 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
Show 57 more
  1. 2026-06-28 00:30 UTCEG score recompute
  2. 2026-06-28 00:30 UTCGHSA enrichment
  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-26 23:18 UTCEG score recompute
  5. 2026-06-26 23:18 UTCGHSA enrichment
  6. 2026-06-25 22:19 UTCEG score recompute
  7. 2026-06-25 22:19 UTCGHSA enrichment
  8. 2026-06-25 13:50 UTCEPSS rescore
  9. 2026-06-24 21:18 UTCEG score recompute
  10. 2026-06-24 21:18 UTCGHSA enrichment
  11. 2026-06-24 14:05 UTCEPSS rescore
  12. 2026-06-23 21:33 UTCEPSS rescore
  13. 2026-06-23 16:17 UTCEG score recompute
  14. 2026-06-23 16:17 UTCGHSA enrichment
  15. 2026-06-22 14:25 UTCEPSS rescore
  16. 2026-06-22 05:51 UTCEG score recompute
  17. 2026-06-22 05:51 UTCGHSA enrichment
  18. 2026-06-21 14:56 UTCEPSS rescore
  19. 2026-06-21 02:59 UTCEG score recompute
  20. 2026-06-21 02:59 UTCGHSA enrichment
  21. 2026-06-21 01:59 UTCEPSS rescore
  22. 2026-06-19 23:54 UTCEG score recompute
  23. 2026-06-19 23:54 UTCGHSA enrichment
  24. 2026-06-19 19:26 UTCEPSS rescore
  25. 2026-06-18 22:55 UTCEG score recompute
  26. 2026-06-18 22:55 UTCGHSA enrichment
  27. 2026-06-18 17:52 UTCEPSS rescore
  28. 2026-06-17 21:56 UTCEG score recompute
  29. 2026-06-17 21:56 UTCGHSA enrichment
  30. 2026-06-17 17:53 UTCEPSS rescore
  31. 2026-06-16 20:57 UTCEG score recompute
  32. 2026-06-16 20:57 UTCGHSA enrichment
  33. 2026-06-16 17:53 UTCEPSS rescore
  34. 2026-06-15 19:58 UTCEG score recompute
  35. 2026-06-15 19:58 UTCGHSA enrichment
  36. 2026-06-15 17:49 UTCEPSS rescore
  37. 2026-06-15 17:49 UTCEPSS rescore
  38. 2026-06-14 23:18 UTCEPSS rescore
  39. 2026-06-14 18:57 UTCEG score recompute
  40. 2026-06-14 18:57 UTCGHSA enrichment
  41. 2026-06-13 23:00 UTCEPSS rescore
  42. 2026-06-13 17:57 UTCEG score recompute
  43. 2026-06-13 17:56 UTCGHSA enrichment
  44. 2026-06-12 23:12 UTCEPSS rescore
  45. 2026-06-12 23:12 UTCEPSS rescore
  46. 2026-06-12 16:56 UTCEG score recompute
  47. 2026-06-12 16:55 UTCGHSA enrichment
  48. 2026-06-11 15:56 UTCEG score recompute
  49. 2026-06-11 15:55 UTCGHSA enrichment
  50. 2026-06-11 14:00 UTCEPSS rescore
  51. 2026-06-10 22:19 UTCEPSS rescore
  52. 2026-06-10 14:55 UTCEG score recompute
  53. 2026-06-10 14:55 UTCGHSA enrichment
  54. 2026-06-10 13:22 UTCEPSS rescore
  55. 2026-06-09 13:56 UTCEG score recompute
  56. 2026-06-09 13:56 UTCGHSA enrichment
  57. 2026-06-08 12:57 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8078?
CVE-2026-8078 is a medium vulnerability published on June 8, 2026. Stored cross-site scripting in the global settings change log in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript in changelog messages that executes in other users' browsers when they view…
When was CVE-2026-8078 disclosed?
CVE-2026-8078 was first published in the National Vulnerability Database on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8078 actively exploited?
CVE-2026-8078 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8078?
CVE-2026-8078 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-8078?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8078, 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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