CVE-2026-8681— Essential Chat Support <= 1.0.1 - Missing Authorization to Unauthenticated Settings Reset via 'ecs_reset_settings' Parameter
Possible ATT&CK Techniques 1AI
T1498 · Network Denial of ServiceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| essentialplugin | Essential Chat Support | ≤ 1.0.1 | affected |
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I. Basic Information for CVE-2026-8681
Vulnerability Information
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Vulnerability Title
Essential Chat Support <= 1.0.1 - Missing Authorization to Unauthenticated Settings Reset via 'ecs_reset_settings' Parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Essential Chat Support plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.0.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to reset all plugin configuration settings — including general settings, display rules, custom CSS, and WooCommerce tab settings — to their defaults by sending a POST request with ecs_reset_settings=1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Essential Chat Support 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Essential Chat Support 1.0.1及之前版本存在安全漏洞，该漏洞源于插件未正确验证用户是否被授权执行操作，可能导致未经身份验证的攻击者通过发送带有ecs_reset_settings=1的POS
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| essentialplugin | Essential Chat Support | 0 ~ 1.0.1 | - |
II. Public POCs for CVE-2026-8681
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-8681 (1)
IV. Related Vulnerabilities
Same vendor: essentialplugin
Same weakness: CWE-862
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V. Comments for CVE-2026-8681
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