CVE-2026-73371

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-08-18. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.3Exploit: None knownExposed services: Not assessed

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

Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform copy batch operations on uneditable items.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100CISA SSVC

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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 18, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Aug 18, 2026
No patch confirmed yet.
generic

Joomla Content Management System (CMS) - try it! It's free!

https://www.joomla.org/

Vendor Advisories for CVE-2026-73371(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 15× in last 7d / 70× 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 130 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 21:42 UTCGHSA enrichment
  3. 2026-10-03 17:39 UTCEG score recompute
  4. 2026-10-03 17:39 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 10:10 UTCEG score recompute
  7. 2026-10-02 10:10 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-10-01 09:59 UTCEG score recompute
  10. 2026-10-01 09:59 UTCGHSA enrichment
  11. 2026-09-30 09:48 UTCEG score recompute
  12. 2026-09-30 09:48 UTCGHSA enrichment
  13. 2026-09-29 15:24 UTCEPSS rescore
  14. 2026-09-29 08:20 UTCEG score recompute
  15. 2026-09-29 08:20 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-28 08:09 UTCEG score recompute
  18. 2026-09-28 08:09 UTCGHSA enrichment
  19. 2026-09-27 13:48 UTCEPSS rescore
  20. 2026-09-27 07:56 UTCEG score recompute
  21. 2026-09-27 07:56 UTCGHSA enrichment
  22. 2026-09-26 15:59 UTCEPSS rescore
  23. 2026-09-25 06:52 UTCEG score recompute
  24. 2026-09-25 06:52 UTCGHSA enrichment
  25. 2026-09-24 06:42 UTCEG score recompute
Show 75 more
  1. 2026-09-24 06:41 UTCGHSA enrichment
  2. 2026-09-23 17:54 UTCEPSS rescore
  3. 2026-09-23 06:28 UTCEG score recompute
  4. 2026-09-23 06:28 UTCGHSA enrichment
  5. 2026-09-22 06:17 UTCEG score recompute
  6. 2026-09-22 06:17 UTCGHSA enrichment
  7. 2026-09-21 21:09 UTCEPSS rescore
  8. 2026-09-21 06:03 UTCEG score recompute
  9. 2026-09-21 06:03 UTCGHSA enrichment
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-20 05:36 UTCEG score recompute
  12. 2026-09-20 05:35 UTCGHSA enrichment
  13. 2026-09-19 05:25 UTCEG score recompute
  14. 2026-09-19 05:25 UTCGHSA enrichment
  15. 2026-09-18 19:28 UTCEPSS rescore
  16. 2026-09-18 05:14 UTCEG score recompute
  17. 2026-09-18 05:14 UTCGHSA enrichment
  18. 2026-09-17 05:03 UTCEG score recompute
  19. 2026-09-17 05:03 UTCGHSA enrichment
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-16 04:52 UTCGHSA enrichment
  23. 2026-09-15 04:33 UTCEG score recompute
  24. 2026-09-15 04:33 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
  26. 2026-09-14 04:22 UTCEG score recompute
  27. 2026-09-14 04:22 UTCGHSA enrichment
  28. 2026-09-13 04:11 UTCEG score recompute
  29. 2026-09-13 04:11 UTCGHSA enrichment
  30. 2026-09-12 15:02 UTCEPSS rescore
  31. 2026-09-12 03:58 UTCEG score recompute
  32. 2026-09-12 03:58 UTCGHSA enrichment
  33. 2026-09-11 14:53 UTCEPSS rescore
  34. 2026-09-11 03:47 UTCEG score recompute
  35. 2026-09-11 03:47 UTCGHSA enrichment
  36. 2026-09-10 09:35 UTCEPSS rescore
  37. 2026-09-10 03:36 UTCGHSA enrichment
  38. 2026-09-09 03:25 UTCEG score recompute
  39. 2026-09-09 03:25 UTCGHSA enrichment
  40. 2026-09-08 22:01 UTCEPSS rescore
  41. 2026-09-07 16:15 UTCEG score recompute
  42. 2026-09-07 16:15 UTCGHSA enrichment
  43. 2026-09-06 16:04 UTCEG score recompute
  44. 2026-09-06 16:03 UTCGHSA enrichment
  45. 2026-09-06 13:48 UTCEPSS rescore
  46. 2026-09-05 15:52 UTCEG score recompute
  47. 2026-09-05 15:51 UTCGHSA enrichment
  48. 2026-09-04 15:39 UTCEG score recompute
  49. 2026-09-04 15:39 UTCGHSA enrichment
  50. 2026-09-04 05:07 UTCEPSS rescore
  51. 2026-09-03 15:12 UTCEG score recompute▼ 0.80
  52. 2026-09-03 15:12 UTCGHSA enrichment
  53. 2026-09-03 15:09 UTCNVD updateCVSS v3 → 4.3
  54. 2026-09-02 22:38 UTCEG score recompute
  55. 2026-09-02 22:38 UTCGHSA enrichment
  56. 2026-09-02 14:12 UTCEPSS rescore
  57. 2026-09-01 22:27 UTCEG score recompute
  58. 2026-09-01 22:27 UTCGHSA enrichment
  59. 2026-09-01 13:54 UTCEPSS rescore
  60. 2026-09-01 04:40 UTCEPSS rescore
  61. 2026-09-01 04:40 UTCEPSS rescore
  62. 2026-08-31 22:16 UTCGHSA enrichment
  63. 2026-08-30 22:05 UTCEG score recompute
  64. 2026-08-30 22:05 UTCGHSA enrichment
  65. 2026-08-30 19:18 UTCEPSS rescore
  66. 2026-08-30 19:17 UTCEPSS rescore
  67. 2026-08-30 01:22 UTCEPSS rescore
  68. 2026-08-29 21:54 UTCGHSA enrichment
  69. 2026-08-28 21:43 UTCEG score recompute
  70. 2026-08-28 21:43 UTCGHSA enrichment
  71. 2026-08-28 21:42 UTCEPSS rescore
  72. 2026-08-28 07:24 UTCEG score recompute
  73. 2026-08-28 07:24 UTCGHSA enrichment
  74. 2026-08-27 14:25 UTCEPSS rescore
  75. 2026-08-27 06:59 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73371?
CVE-2026-73371 is a medium vulnerability published on August 18, 2026. Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform copy batch operations on uneditable items.
When was CVE-2026-73371 disclosed?
CVE-2026-73371 was first published on August 18, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73371 actively exploited?
CVE-2026-73371 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73371?
CVE-2026-73371 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-73371?
No fix for CVE-2026-73371 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-73371 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-73371

Explore →

Is Your Infrastructure Affected by CVE-2026-73371?

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

Book a Demo →Browse All CVEs