# CVE-2026-73996: WordPress Masteriyo - LMS plugin <= 2.3.2 - Arbitrary File Upload vulnerability

Status: published. Published: 2026-08-18. Updated: 2026-11-05.

Unrestricted Upload of File with Dangerous Type vulnerability in ThemeGrill Masteriyo - LMS learning-management-system allows Upload a Web Shell to a Web Server.This issue affects Masteriyo - LMS: from n/a through 2.3.2.

## Remediation

- fix: Update the WordPress Masteriyo - LMS plugin to the latest available version (at least 2.3.3). (source: CNA: Patchstack)

## Affected products and versions

- ThemeGrill / Masteriyo - LMS (learning-management-system): ≥ 0; ≤ 2.3.2 (affected, custom); unaffected at 2.3.3. Source: CNA: Patchstack

## Severity and prioritization

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: Patchstack

- CISA KEV: No listing in collected sources

- EPSS: 0.52% as of 2026-11-04; percentile 44.43%

- SSVC: exploitation none; automatable yes; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-434

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://patchstack.com/database/wordpress/plugin/learning-management-system/vulnerability/wordpress-masteriyo-lms-plugin-2-3-2-arbitrary-file-upload-vulnerability?_s_id=cve (CNA: Patchstack; vdb-entry)

## Provenance

- CNA: Patchstack: https://www.cve.org/CVERecord?id=CVE-2026-73996; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-73996; retrieved 2026-11-05; source updated Not reported

Revision: a43390fe941442f7b156820e21bc5353094d20a7a253f6e0b68968c4894e0776

Canonical: https://y2.dev/cve/CVE-2026-73996

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.