CVE-2026-88843

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-24. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.2Exploit: 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 MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was corrected in an earlier release and this one was not, so the issue persists in versions the earlier advisory reports as fixed.

CVSS v3
7.2
EG Score
7.2HIGHhigh confidence
EG Risk
33
EG Risk 33/100CISA 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
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
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
0.4%
EPSS %ILE
27th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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 total (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 24, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Sep 24, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

MasterStudy LMS 3.5.29 – < 3.7.50 – Contributor+ LFI via Elementor Courses Categories Widget | CVE 2026-88843 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/fffc0d8c-256e-417d-b76c-251948b9f1ed/

Vendor Advisories for CVE-2026-88843(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 25× in last 7d / 44× 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. 2026-10-04 09:09 UTCGHSA enrichment
  2. 2026-10-03 20:50 UTCEG score recompute
  3. 2026-10-03 20:50 UTCGHSA enrichment
  4. 2026-10-03 08:32 UTCGHSA enrichment
  5. 2026-10-02 20:09 UTCEG score recompute
  6. 2026-10-02 20:09 UTCGHSA enrichment
  7. 2026-10-02 07:48 UTCEG score recompute
  8. 2026-10-02 07:48 UTCGHSA enrichment
  9. 2026-10-01 19:51 UTCEPSS rescore
  10. 2026-10-01 19:29 UTCGHSA enrichment
  11. 2026-10-01 07:11 UTCGHSA enrichment
  12. 2026-09-30 18:53 UTCEG score recompute
  13. 2026-09-30 18:53 UTCGHSA enrichment
  14. 2026-09-30 15:04 UTCEPSS rescore
  15. 2026-09-30 06:35 UTCGHSA enrichment
  16. 2026-09-29 18:16 UTCEG score recompute
  17. 2026-09-29 18:16 UTCGHSA enrichment
  18. 2026-09-29 05:50 UTCEG score recompute
  19. 2026-09-29 05:50 UTCGHSA enrichment
  20. 2026-09-28 17:32 UTCEG score recompute
  21. 2026-09-28 17:32 UTCGHSA enrichment
  22. 2026-09-28 13:52 UTCEPSS rescore
  23. 2026-09-28 05:13 UTCGHSA enrichment
  24. 2026-09-27 16:54 UTCEG score recompute
  25. 2026-09-27 16:54 UTCGHSA enrichment
Show 19 more
  1. 2026-09-27 13:48 UTCEPSS rescore
  2. 2026-09-27 04:36 UTCGHSA enrichment
  3. 2026-09-26 16:17 UTCEG score recompute
  4. 2026-09-26 16:16 UTCGHSA enrichment
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-26 03:56 UTCEG score recompute
  7. 2026-09-26 03:55 UTCGHSA enrichment
  8. 2026-09-25 15:34 UTCGHSA enrichment
  9. 2026-09-25 03:13 UTCGHSA enrichment
  10. 2026-09-24 14:55 UTCEG score recompute
  11. 2026-09-24 14:55 UTCGHSA enrichment
  12. 2026-09-24 14:04 UTCEPSS rescore
  13. 2026-09-24 11:17 UTCGHSA enrichment
  14. 2026-09-24 10:49 UTCEG score recompute▲ 7.20
  15. 2026-09-24 10:49 UTCGHSA enrichment
  16. 2026-09-24 10:49 UTCMITRE cvelistV5CVSS v3 → 7.2 · severity → HIGH
  17. 2026-09-24 06:23 UTCNVD update
  18. 2026-09-24 06:10 UTCEG score recompute
  19. 2026-09-24 06:10 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-88843?
CVE-2026-88843 is a high vulnerability published on September 24, 2026. The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was…
When was CVE-2026-88843 disclosed?
CVE-2026-88843 was first published on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88843 actively exploited?
CVE-2026-88843 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-88843?
CVE-2026-88843 has a CVSS v3.1 base score of 7.2 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-88843?
No fix for CVE-2026-88843 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-2026-88843 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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