プラットフォーム
wordpress
コンポーネント
easy-timer
修正版
4.2.2
CVE-2025-9519 is a Remote Code Execution (RCE) vulnerability affecting the Easy Timer plugin for WordPress. This vulnerability allows authenticated attackers with Editor-level access or higher to execute arbitrary code on the server. It impacts versions 0.0.0 through 4.2.1, and a patch is available in version 4.2.2.
The vulnerability stems from insufficient restriction of shortcode attributes within the Easy Timer plugin. An attacker, possessing Editor privileges or greater, can leverage this flaw to inject and execute malicious code through crafted shortcode parameters. Successful exploitation could lead to complete server compromise, allowing the attacker to gain full control over the WordPress instance, steal sensitive data (user credentials, database information), modify website content, or even use the server as a launchpad for further attacks. The impact is particularly severe due to the potential for widespread compromise if the WordPress site hosts sensitive information or serves as a critical business application.
CVE-2025-9519 was publicly disclosed on 2025-09-04. No known public proof-of-concept (PoC) exploits have been released at the time of writing, but the vulnerability's RCE nature and ease of exploitation make it a likely target for exploitation. It is not currently listed on the CISA KEV catalog. The vulnerability's impact is amplified by the widespread use of WordPress and the plugin's popularity.
WordPress websites utilizing the Easy Timer plugin, particularly those with Editor-level users or higher, are at risk. Shared hosting environments where multiple WordPress sites share the same server are especially vulnerable, as a compromise of one site could potentially lead to the compromise of others. Sites using older, unpatched versions of WordPress or with weak security configurations are also at increased risk.
• wordpress / composer / npm:
grep -r "shortcode_atts" /var/www/html/wp-content/plugins/easy-timer/• wordpress / composer / npm:
wp plugin list | grep easy-timer• wordpress / composer / npm:
wp plugin update easy-timer --all• generic web: Inspect WordPress access logs for unusual shortcode usage patterns or attempts to execute code via shortcode attributes.
Public Disclosure
エクスプロイト状況
EPSS
0.26% (49% パーセンタイル)
CISA SSVC
CVSS ベクトル
The primary mitigation is to immediately upgrade the Easy Timer plugin to version 4.2.2 or later. If upgrading is not feasible due to compatibility issues or breaking changes, consider temporarily disabling the Easy Timer plugin to prevent exploitation. As a secondary measure, review WordPress user roles and permissions, ensuring that only authorized users have Editor access. Implement a Web Application Firewall (WAF) with rules to filter potentially malicious shortcode parameters. Monitor WordPress access logs for suspicious activity, specifically looking for unusual shortcode usage or code execution attempts.
Actualice el plugin Easy Timer a la versión 4.2.2 o superior para mitigar la vulnerabilidad de ejecución remota de código. Esta actualización restringe adecuadamente los atributos de los shortcodes, previniendo la ejecución de código malicioso por parte de atacantes autenticados.
脆弱性分析と重要アラートをメールでお届けします。
CVE-2025-9519 is a Remote Code Execution vulnerability in the Easy Timer WordPress plugin, allowing attackers with Editor access to execute code. It affects versions 0.0.0–4.2.1.
You are affected if your WordPress site uses the Easy Timer plugin in versions 0.0.0 through 4.2.1. Check your plugin versions immediately.
Upgrade the Easy Timer plugin to version 4.2.2 or later. If upgrading is not possible, disable the plugin temporarily.
While no public exploits are currently known, the vulnerability's nature makes it a likely target for exploitation. Monitor your systems closely.
Refer to the Easy Timer plugin's official website or WordPress plugin repository for the latest advisory and update information.
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