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CVE-2026-6401— Bottom Bar <= 0.1.7 - Cross-Site Request Forgery to Settings Update

CVSS 4.3 · Medium EPSS 0.02% · P7

Affected Version Matrix 1

VendorProductVersion RangeStatus
svil4okBottom Bar≤ 0.1.7affected
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I. Basic Information for CVE-2026-6401

Vulnerability Information
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Vulnerability Title
Bottom Bar <= 0.1.7 - Cross-Site Request Forgery to Settings Update
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Bottom Bar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.1.7. This is due to missing nonce verification on the plugin's settings update forms handled in bottom-bar-admin.php. None of the three settings forms (main settings, sharing services, restore defaults) include a wp_nonce_field(), and the server-side processing code never calls check_admin_referer() or any equivalent nonce validation before processing POST data and calling update_option(). This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that updates plugin configuration options, such as changing the language, maximum post counts, or enabled sharing services.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨站请求伪造(CSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Bottom Bar 跨站请求伪造漏洞
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 Bottom Bar 0.1.7及之前版本存在跨站请求伪造漏洞，该漏洞源于设置更新表单缺少nonce验证，可能导致未经身份验证的攻击者诱使登录管理员提交伪造请求，更新插件配置选项。
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

VendorProductAffected VersionsCPESubscribe
svil4okBottom Bar 0 ~ 0.1.7 -

II. Public POCs for CVE-2026-6401

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III. Intelligence Information for CVE-2026-6401

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Patches & Fixes for CVE-2026-6401 (1)

Vendor Advisories for CVE-2026-6401 (1)

IV. Related Vulnerabilities

Same vendor: svil4ok
Same weakness: CWE-352

V. Comments for CVE-2026-6401

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