CVE-2026-72531

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-08-18. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.4Exploit: 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 - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to create fields for inaccessible components.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA 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
Severity54% × 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
16th
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-2026-72531(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 / 73× 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 133 total refreshes for this CVE.

  1. 2026-10-05 14:22 UTCEG score recompute
  2. 2026-10-05 14:22 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 16:16 UTCGHSA enrichment
  5. 2026-10-03 17:39 UTCEG score recompute
  6. 2026-10-03 17:39 UTCGHSA enrichment
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 06:53 UTCEG score recompute
  9. 2026-10-02 06:53 UTCGHSA enrichment
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-10-01 07:53 UTCEG score recompute
  12. 2026-10-01 07:53 UTCGHSA enrichment
  13. 2026-09-30 09:48 UTCEG score recompute
  14. 2026-09-30 09:48 UTCGHSA enrichment
  15. 2026-09-29 04:06 UTCEG score recompute
  16. 2026-09-29 04:06 UTCGHSA enrichment
  17. 2026-09-28 06:01 UTCEG score recompute
  18. 2026-09-28 06:01 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 08:09 UTCEG score recompute
  24. 2026-09-25 08:09 UTCGHSA enrichment
  25. 2026-09-24 10:04 UTCEG score recompute
Show 75 more
  1. 2026-09-24 10:04 UTCGHSA enrichment
  2. 2026-09-23 17:54 UTCEPSS rescore
  3. 2026-09-23 12:00 UTCEG score recompute
  4. 2026-09-23 12:00 UTCGHSA enrichment
  5. 2026-09-22 13:54 UTCEG score recompute
  6. 2026-09-22 13:54 UTCGHSA enrichment
  7. 2026-09-21 21:09 UTCEPSS rescore
  8. 2026-09-21 15:47 UTCEG score recompute
  9. 2026-09-21 15:47 UTCGHSA enrichment
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-20 17:03 UTCGHSA enrichment
  12. 2026-09-19 18:44 UTCEG score recompute
  13. 2026-09-19 18:44 UTCGHSA enrichment
  14. 2026-09-18 19:58 UTCEG score recompute
  15. 2026-09-18 19:58 UTCGHSA enrichment
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-17 21:51 UTCEG score recompute
  18. 2026-09-17 21:51 UTCGHSA enrichment
  19. 2026-09-16 21:57 UTCEG score recompute
  20. 2026-09-16 21:57 UTCGHSA enrichment
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 19:09 UTCEG score recompute
  24. 2026-09-15 19:09 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
  26. 2026-09-14 19:44 UTCGHSA enrichment
  27. 2026-09-13 21:03 UTCEG score recompute
  28. 2026-09-13 21:03 UTCGHSA enrichment
  29. 2026-09-12 22:58 UTCEG score recompute
  30. 2026-09-12 22:58 UTCGHSA enrichment
  31. 2026-09-12 15:02 UTCEPSS rescore
  32. 2026-09-12 00:53 UTCEG score recompute
  33. 2026-09-12 00:53 UTCGHSA enrichment
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 02:48 UTCEG score recompute
  36. 2026-09-11 02:47 UTCGHSA enrichment
  37. 2026-09-10 09:35 UTCEPSS rescore
  38. 2026-09-10 04:42 UTCGHSA enrichment
  39. 2026-09-09 06:36 UTCEG score recompute
  40. 2026-09-09 06:36 UTCGHSA enrichment
  41. 2026-09-08 22:01 UTCEPSS rescore
  42. 2026-09-08 08:31 UTCEG score recompute
  43. 2026-09-08 08:30 UTCGHSA enrichment
  44. 2026-09-07 10:25 UTCEG score recompute
  45. 2026-09-07 10:25 UTCGHSA enrichment
  46. 2026-09-06 13:48 UTCEPSS rescore
  47. 2026-09-06 09:30 UTCEG score recompute
  48. 2026-09-06 09:30 UTCGHSA enrichment
  49. 2026-09-05 11:25 UTCEG score recompute
  50. 2026-09-05 11:25 UTCGHSA enrichment
  51. 2026-09-04 13:18 UTCEG score recompute
  52. 2026-09-04 13:18 UTCGHSA enrichment
  53. 2026-09-04 05:07 UTCEPSS rescore
  54. 2026-09-03 15:12 UTCEG score recompute▲ 0.30
  55. 2026-09-03 15:12 UTCGHSA enrichment
  56. 2026-09-03 15:09 UTCNVD updateCVSS v3 → 5.4
  57. 2026-09-02 16:49 UTCEG score recompute
  58. 2026-09-02 16:49 UTCGHSA enrichment
  59. 2026-09-02 14:12 UTCEPSS rescore
  60. 2026-09-01 18:30 UTCEG score recompute
  61. 2026-09-01 18:30 UTCGHSA enrichment
  62. 2026-09-01 13:54 UTCEPSS rescore
  63. 2026-09-01 04:40 UTCEPSS rescore
  64. 2026-09-01 04:40 UTCEPSS rescore
  65. 2026-08-31 20:16 UTCEG score recompute
  66. 2026-08-31 20:16 UTCGHSA enrichment
  67. 2026-08-30 19:18 UTCEPSS rescore
  68. 2026-08-30 19:17 UTCEPSS rescore
  69. 2026-08-30 17:55 UTCEG score recompute
  70. 2026-08-30 17:55 UTCGHSA enrichment
  71. 2026-08-30 01:22 UTCEPSS rescore
  72. 2026-08-29 19:50 UTCGHSA enrichment
  73. 2026-08-28 21:43 UTCEG score recompute
  74. 2026-08-28 21:43 UTCGHSA enrichment
  75. 2026-08-28 21:42 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72531?
CVE-2026-72531 is a medium vulnerability published on August 18, 2026. Joomla! Core - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to create fields for inaccessible components.
When was CVE-2026-72531 disclosed?
CVE-2026-72531 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-2026-72531 actively exploited?
CVE-2026-72531 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72531?
CVE-2026-72531 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-72531?
No fix for CVE-2026-72531 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-2026-72531 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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