Vulnerability · Published Sep 4, 2025 · Assigned by Wordfence

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

High 7.2

In plain English

A high-severity code injection in Easy Timer from kleor. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.9%top 39.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official 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.

Affected products (as reported)

VendorProductVersions
kleor Easy Timer 0 – through 4.2.1

Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References