CVE-2026-12843

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-09-05. A secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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: 0.2%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.

The LearnDash LMS plugin for WordPress is vulnerable to authorization bypass in versions 4.25.0 - 5.1.6. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to enroll arbitrary users in paid courses without payment verification, bypassing the entire payment system and gaining unauthorized access to premium educational content.

CVSS v3
5.4
EG Score
5.4MEDIUMhigh 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
0.2%
EPSS %ILE
5th
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

September 5, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 5, 2026
No patch confirmed yet.
generic

Changelogs - Nexcess Documentation

https://docs.nexcess.com/software/changelogs/learndash/sfwd-lms/5-1-6-1/

Vendor Advisories for CVE-2026-12843(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 20× in last 7d / 78× 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. 2026-10-05 08:07 UTCEG score recompute
  2. 2026-10-05 08:07 UTCGHSA enrichment
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-04 07:28 UTCEG score recompute
  5. 2026-10-04 07:28 UTCGHSA enrichment
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-03 06:49 UTCEG score recompute
  8. 2026-10-03 06:49 UTCGHSA enrichment
  9. 2026-10-02 06:10 UTCEG score recompute
  10. 2026-10-02 06:10 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 05:30 UTCEG score recompute
  13. 2026-10-01 05:30 UTCGHSA enrichment
  14. 2026-09-30 15:02 UTCEPSS rescore
  15. 2026-09-30 04:51 UTCEG score recompute
  16. 2026-09-30 04:51 UTCGHSA enrichment
  17. 2026-09-29 15:20 UTCEPSS rescore
  18. 2026-09-29 04:05 UTCEG score recompute
  19. 2026-09-29 04:05 UTCGHSA enrichment
  20. 2026-09-28 13:50 UTCEPSS rescore
  21. 2026-09-28 03:25 UTCEG score recompute
  22. 2026-09-28 03:25 UTCGHSA enrichment
  23. 2026-09-27 02:46 UTCEG score recompute
  24. 2026-09-27 02:46 UTCGHSA enrichment
  25. 2026-09-26 15:58 UTCEPSS rescore
Show 56 more
  1. 2026-09-26 02:07 UTCEG score recompute
  2. 2026-09-26 02:07 UTCGHSA enrichment
  3. 2026-09-25 01:19 UTCEG score recompute
  4. 2026-09-25 01:19 UTCGHSA enrichment
  5. 2026-09-24 00:40 UTCEG score recompute
  6. 2026-09-24 00:40 UTCGHSA enrichment
  7. 2026-09-23 13:47 UTCEPSS rescore
  8. 2026-09-23 00:00 UTCEG score recompute
  9. 2026-09-23 00:00 UTCGHSA enrichment
  10. 2026-09-21 23:21 UTCEG score recompute
  11. 2026-09-21 23:21 UTCGHSA enrichment
  12. 2026-09-20 22:41 UTCEG score recompute
  13. 2026-09-20 22:41 UTCGHSA enrichment
  14. 2026-09-20 20:15 UTCEPSS rescore
  15. 2026-09-19 22:03 UTCEG score recompute
  16. 2026-09-19 22:03 UTCGHSA enrichment
  17. 2026-09-18 21:22 UTCEG score recompute
  18. 2026-09-18 21:22 UTCGHSA enrichment
  19. 2026-09-18 19:27 UTCEPSS rescore
  20. 2026-09-17 20:22 UTCEG score recompute
  21. 2026-09-17 20:22 UTCGHSA enrichment
  22. 2026-09-16 19:41 UTCEG score recompute
  23. 2026-09-16 19:41 UTCGHSA enrichment
  24. 2026-09-16 05:14 UTCEPSS rescore
  25. 2026-09-15 19:02 UTCEG score recompute
  26. 2026-09-15 19:02 UTCGHSA enrichment
  27. 2026-09-14 18:22 UTCGHSA enrichment
  28. 2026-09-13 17:31 UTCEG score recompute
  29. 2026-09-13 17:31 UTCGHSA enrichment
  30. 2026-09-13 16:46 UTCEPSS rescore
  31. 2026-09-12 16:52 UTCEG score recompute
  32. 2026-09-12 16:52 UTCGHSA enrichment
  33. 2026-09-12 15:00 UTCEPSS rescore
  34. 2026-09-11 16:13 UTCEG score recompute
  35. 2026-09-11 16:13 UTCGHSA enrichment
  36. 2026-09-11 09:36 UTCEPSS rescore
  37. 2026-09-10 15:34 UTCEG score recompute
  38. 2026-09-10 15:34 UTCGHSA enrichment
  39. 2026-09-10 09:34 UTCEPSS rescore
  40. 2026-09-09 14:54 UTCEG score recompute
  41. 2026-09-09 14:54 UTCGHSA enrichment
  42. 2026-09-08 22:00 UTCEPSS rescore
  43. 2026-09-08 14:15 UTCGHSA enrichment
  44. 2026-09-08 13:04 UTCEG score recompute
  45. 2026-09-08 13:03 UTCGHSA enrichment
  46. 2026-09-07 16:01 UTCEPSS rescore
  47. 2026-09-07 12:23 UTCEG score recompute
  48. 2026-09-07 12:23 UTCGHSA enrichment
  49. 2026-09-07 11:28 UTCEG score recompute
  50. 2026-09-07 11:27 UTCGHSA enrichment
  51. 2026-09-06 13:47 UTCEPSS rescore
  52. 2026-09-06 13:01 UTCEG score recompute
  53. 2026-09-06 13:01 UTCGHSA enrichment
  54. 2026-09-05 12:22 UTCEG score recompute
  55. 2026-09-05 11:33 UTCEG score recompute
  56. 2026-09-05 11:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12843?
CVE-2026-12843 is a medium vulnerability published on September 5, 2026. The LearnDash LMS plugin for WordPress is vulnerable to authorization bypass in versions 4.25.0 - 5.1.6. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to enroll arbitrary users in paid courses…
When was CVE-2026-12843 disclosed?
CVE-2026-12843 was first published on September 5, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12843 actively exploited?
CVE-2026-12843 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12843?
CVE-2026-12843 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12843?
No fix for CVE-2026-12843 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-2026-12843 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-12843

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