CVE-2026-50591

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-06-05. the CNA's CVSS baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:mitre, epss, ghsa
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 Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.

CVSS v3
5.4
EG Score
5.4(medium)
EPSS
3.2%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 5, 2026

Advisory Details (1)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

ZSA-2026-11

https://www.znuny.org/en/advisories/zsa-2026-11

Vendor Advisories for CVE-2026-50591(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 16× in last 7d / 87× 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 02:23 UTCEPSS rescore
  3. 2026-07-05 23:45 UTCEG score recompute
  4. 2026-07-05 23:45 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 20:52 UTCEG score recompute
  7. 2026-07-04 20:52 UTCGHSA enrichment
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-03 03:20 UTCEG score recompute
  10. 2026-07-03 03:20 UTCGHSA enrichment
  11. 2026-07-02 00:57 UTCEG score recompute
  12. 2026-07-02 00:56 UTCGHSA enrichment
  13. 2026-07-01 15:07 UTCEPSS rescore
  14. 2026-06-30 23:22 UTCEPSS rescore
  15. 2026-06-30 22:29 UTCEG score recompute
  16. 2026-06-30 22:29 UTCGHSA enrichment
  17. 2026-06-29 20:11 UTCEG score recompute
  18. 2026-06-29 20:11 UTCGHSA enrichment
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-28 17:52 UTCEG score recompute
  22. 2026-06-28 17:52 UTCGHSA enrichment
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
Show 69 more
  1. 2026-06-27 15:27 UTCEG score recompute
  2. 2026-06-27 15:27 UTCGHSA enrichment
  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-26 13:09 UTCEG score recompute
  5. 2026-06-26 13:09 UTCGHSA enrichment
  6. 2026-06-25 13:49 UTCEPSS rescore
  7. 2026-06-25 03:53 UTCEG score recompute
  8. 2026-06-25 03:53 UTCGHSA enrichment
  9. 2026-06-24 14:05 UTCEPSS rescore
  10. 2026-06-24 01:34 UTCEG score recompute
  11. 2026-06-24 01:34 UTCGHSA enrichment
  12. 2026-06-23 21:33 UTCEPSS rescore
  13. 2026-06-23 21:33 UTCEPSS rescore
  14. 2026-06-22 23:16 UTCEG score recompute
  15. 2026-06-22 23:16 UTCGHSA enrichment
  16. 2026-06-22 14:25 UTCEPSS rescore
  17. 2026-06-22 14:25 UTCEPSS rescore
  18. 2026-06-21 14:56 UTCEPSS rescore
  19. 2026-06-21 14:56 UTCEPSS rescore
  20. 2026-06-21 01:59 UTCEPSS rescore
  21. 2026-06-21 01:59 UTCEPSS rescore
  22. 2026-06-20 14:48 UTCEG score recompute
  23. 2026-06-20 14:48 UTCGHSA enrichment
  24. 2026-06-19 19:26 UTCEPSS rescore
  25. 2026-06-19 19:26 UTCEPSS rescore
  26. 2026-06-19 12:18 UTCEG score recompute
  27. 2026-06-19 12:18 UTCGHSA enrichment
  28. 2026-06-18 17:52 UTCEPSS rescore
  29. 2026-06-18 17:52 UTCEPSS rescore
  30. 2026-06-18 07:28 UTCEG score recompute
  31. 2026-06-18 07:28 UTCGHSA enrichment
  32. 2026-06-17 17:53 UTCEPSS rescore
  33. 2026-06-17 03:31 UTCEG score recompute
  34. 2026-06-17 03:31 UTCGHSA enrichment
  35. 2026-06-16 17:53 UTCEPSS rescore
  36. 2026-06-16 01:12 UTCEG score recompute
  37. 2026-06-16 01:12 UTCGHSA enrichment
  38. 2026-06-15 17:49 UTCEPSS rescore
  39. 2026-06-15 17:49 UTCEPSS rescore
  40. 2026-06-14 23:18 UTCEPSS rescore
  41. 2026-06-14 22:54 UTCEG score recompute
  42. 2026-06-14 22:54 UTCGHSA enrichment
  43. 2026-06-13 23:00 UTCEPSS rescore
  44. 2026-06-13 20:36 UTCEG score recompute
  45. 2026-06-13 20:36 UTCGHSA enrichment
  46. 2026-06-12 23:12 UTCEPSS rescore
  47. 2026-06-12 23:12 UTCEPSS rescore
  48. 2026-06-12 18:17 UTCEG score recompute
  49. 2026-06-12 18:17 UTCGHSA enrichment
  50. 2026-06-11 15:59 UTCEG score recompute
  51. 2026-06-11 15:59 UTCGHSA enrichment
  52. 2026-06-11 14:00 UTCEPSS rescore
  53. 2026-06-10 22:19 UTCEPSS rescore
  54. 2026-06-10 13:38 UTCEG score recompute
  55. 2026-06-10 13:38 UTCGHSA enrichment
  56. 2026-06-10 13:22 UTCEPSS rescore
  57. 2026-06-09 11:21 UTCEG score recompute
  58. 2026-06-09 11:21 UTCGHSA enrichment
  59. 2026-06-08 14:17 UTCEPSS rescore
  60. 2026-06-08 09:03 UTCEG score recompute
  61. 2026-06-08 09:03 UTCGHSA enrichment
  62. 2026-06-07 15:25 UTCEPSS rescore
  63. 2026-06-07 06:46 UTCEG score recompute
  64. 2026-06-07 06:46 UTCGHSA enrichment
  65. 2026-06-06 13:47 UTCEPSS rescore
  66. 2026-06-06 04:28 UTCEG score recompute
  67. 2026-06-06 04:28 UTCGHSA enrichment
  68. 2026-06-05 22:47 UTCEPSS rescore
  69. 2026-06-05 02:10 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50591?
CVE-2026-50591 is a medium vulnerability published on June 5, 2026. In Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.
When was CVE-2026-50591 disclosed?
CVE-2026-50591 was first published in the National Vulnerability Database on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50591 actively exploited?
CVE-2026-50591 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50591?
CVE-2026-50591 has a CVSS v4.0 base score of 5.4 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-50591?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50591, 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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