CVE-2026-54840

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH 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
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 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(high)
EPSS
11.6%
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 40× in last 7d / 63× 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. 2026-07-07 04:04 UTCEG score recompute
  2. 2026-07-07 04:04 UTCGHSA enrichment
  3. 2026-07-06 17:07 UTCEG score recompute
  4. 2026-07-06 17:07 UTCGHSA enrichment
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 06:11 UTCEG score recompute
  8. 2026-07-06 06:11 UTCGHSA enrichment
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 19:01 UTCEG score recompute
  12. 2026-07-05 19:01 UTCGHSA enrichment
  13. 2026-07-05 08:05 UTCEG score recompute
  14. 2026-07-05 08:05 UTCGHSA enrichment
  15. 2026-07-05 02:31 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 21:04 UTCEG score recompute
  18. 2026-07-04 21:04 UTCGHSA enrichment
  19. 2026-07-04 10:08 UTCEG score recompute
  20. 2026-07-04 10:08 UTCGHSA enrichment
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-03 23:11 UTCEG score recompute
  24. 2026-07-03 23:11 UTCGHSA enrichment
  25. 2026-07-03 12:10 UTCEG score recompute
Show 38 more
  1. 2026-07-03 12:09 UTCGHSA enrichment
  2. 2026-07-03 00:49 UTCEG score recompute
  3. 2026-07-03 00:48 UTCGHSA enrichment
  4. 2026-07-02 13:52 UTCEG score recompute
  5. 2026-07-02 13:52 UTCGHSA enrichment
  6. 2026-07-02 02:56 UTCEG score recompute
  7. 2026-07-02 02:56 UTCGHSA enrichment
  8. 2026-07-01 16:00 UTCEG score recompute
  9. 2026-07-01 16:00 UTCGHSA enrichment
  10. 2026-07-01 15:07 UTCEPSS rescore
  11. 2026-07-01 05:04 UTCEG score recompute
  12. 2026-07-01 05:04 UTCGHSA enrichment
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-30 18:08 UTCEG score recompute
  15. 2026-06-30 18:08 UTCGHSA enrichment
  16. 2026-06-30 07:12 UTCEG score recompute
  17. 2026-06-30 07:12 UTCGHSA enrichment
  18. 2026-06-29 20:16 UTCEG score recompute
  19. 2026-06-29 20:16 UTCGHSA enrichment
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-29 14:06 UTCEPSS rescore
  22. 2026-06-29 09:20 UTCEG score recompute
  23. 2026-06-29 09:20 UTCGHSA enrichment
  24. 2026-06-28 22:24 UTCEG score recompute
  25. 2026-06-28 22:24 UTCGHSA enrichment
  26. 2026-06-28 14:07 UTCEPSS rescore
  27. 2026-06-28 11:28 UTCEG score recompute
  28. 2026-06-28 11:28 UTCGHSA enrichment
  29. 2026-06-28 04:56 UTCEPSS rescore
  30. 2026-06-28 04:56 UTCEPSS rescore
  31. 2026-06-28 00:32 UTCEG score recompute
  32. 2026-06-28 00:32 UTCGHSA enrichment
  33. 2026-06-27 13:36 UTCEG score recompute
  34. 2026-06-27 13:36 UTCGHSA enrichment
  35. 2026-06-27 02:40 UTCEG score recompute
  36. 2026-06-27 02:39 UTCGHSA enrichment
  37. 2026-06-26 15:43 UTCEG score recompute
  38. 2026-06-26 15:43 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 11.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-54840

Explore →

Is Your Infrastructure Affected by CVE-2026-54840?

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

Start Free Scan →Browse All CVEs