CVE-2026-54840

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

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

Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

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
Severity73% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

Broken Access Control in WordPress Newsletters Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-13-broken-access-control-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-54840(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 28× in last 7d / 95× 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 123 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54840?
CVE-2026-54840 is a high vulnerability published on June 26, 2026. Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.
When was CVE-2026-54840 disclosed?
CVE-2026-54840 was first published in the National Vulnerability Database on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54840 actively exploited?
CVE-2026-54840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.3% of all scored CVEs.
What is the CVSS score of CVE-2026-54840?
CVE-2026-54840 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-54840?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54840, 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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