CVE-2026-57640

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-06-26. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.

CVSS v3
4.3
EG Score
4.3(high)
EPSS
15.4%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 27, 2026
No patch confirmed yet.
generic

Broken Access Control in WordPress MasterStudy LMS Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-30-broken-access-control-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-57640(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 26× in last 7d / 37× 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 00:22 UTCEG score recompute
  2. 2026-07-07 00:22 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 01:45 UTCEG score recompute
  8. 2026-07-06 01:45 UTCGHSA enrichment
  9. 2026-07-05 03:09 UTCEG score recompute
  10. 2026-07-05 03:09 UTCGHSA enrichment
  11. 2026-07-05 02:31 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-04 04:33 UTCEG score recompute
  16. 2026-07-04 04:33 UTCGHSA enrichment
  17. 2026-07-03 05:56 UTCEG score recompute
  18. 2026-07-03 05:56 UTCGHSA enrichment
  19. 2026-07-02 07:19 UTCEG score recompute
  20. 2026-07-02 07:19 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-07-01 08:43 UTCEG score recompute
  23. 2026-07-01 08:43 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 10:06 UTCEG score recompute
Show 12 more
  1. 2026-06-30 10:05 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-29 11:28 UTCEG score recompute
  4. 2026-06-29 11:28 UTCGHSA enrichment
  5. 2026-06-28 14:07 UTCEPSS rescore
  6. 2026-06-28 12:52 UTCEG score recompute
  7. 2026-06-28 12:51 UTCGHSA enrichment
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 14:15 UTCEG score recompute
  10. 2026-06-27 14:15 UTCGHSA enrichment
  11. 2026-06-26 15:38 UTCEG score recompute
  12. 2026-06-26 15:38 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-57640?
CVE-2026-57640 is a medium vulnerability published on June 26, 2026. Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.
When was CVE-2026-57640 disclosed?
CVE-2026-57640 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-2026-57640 actively exploited?
CVE-2026-57640 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57640?
CVE-2026-57640 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-57640?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57640, 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-2026-57640

Explore →

Is Your Infrastructure Affected by CVE-2026-57640?

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

Start Free Scan →Browse All CVEs