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CVE-2026-19224— Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on Multisite

Quick assessment

Affected
Unknown Hummingbird Performance
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hummingbird Performance WordPress 插件在 3.21.2 版本之前，未将一项影响整个网络的设置限制为仅网络管理员可操作，导致多站点网络中任意单个站点的管理员能够在整个网络范围内执行任意代码。

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I. Basic Information for CVE-2026-19224

Vulnerability Information
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Vulnerability Title
Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on Multisite
Source: CVE Program / CVE List V5
Vulnerability Description
The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Hummingbird Performance 3.15.0 ~ 3.21.2 -

II. Public POCs for CVE-2026-19224

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III. Intelligence Information for CVE-2026-19224

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Other References for CVE-2026-19224 (1)

Same Patch Batch · Unknown · 2026-09-04 · 15 CVEs total

CVE-2026-84146 Xpro Elementor Addons < 1.7.8 - Unauthenticated Draft/Private Product Disclosure via Quick
CVE-2026-84066 Directorist < 8.9 - Subscriber+ Arbitrary Post Meta Write via atbdp_post_attachment_upload
CVE-2026-82193 WPvivid Backup & Migration < 0.9.134 - Admin+ File Write Outside the Backup Directory via
CVE-2026-82194 WPvivid Backup & Migration < 0.9.134 - Admin+ Arbitrary File Deletion via Path Traversal
CVE-2026-82186 WPLP Cookie Consent < 4.4.2 - Admin+ SQLi via 'offset' Parameter
CVE-2026-81347 Frontend Admin by DynamiApps < 3.29.13 - Unauthenticated .htaccess and index.php Deletion
CVE-2026-80438 Ninja Forms 3.14.0 - 3.15.1 - Authenticated Arbitrary Post Modification and Sensitive Info
CVE-2026-79631 WPFunnels < 3.13.0 - Unauthenticated Order and Opt-In PII Disclosure via Web-Accessible Lo
CVE-2026-79632 WPFunnels < 3.13.0 - Unauthenticated Arbitrary Recipient Email Sending via wpfnl_shortcode
CVE-2026-74853 Pods < 3.3.9.2 - Author+ Arbitrary File Read via Shortcode Display Callback
CVE-2026-16281 Classified Listing < 6.1.1 - Subscriber+ Arbitrary Attachment Deletion and Listing Image T
CVE-2026-17517 Content Views < 4.5.1.2 - Unauthenticated Non-Public Post Content Disclosure via Views Sta
CVE-2026-79630 WPFunnels < 3.13.0 - Unauthenticated Price Manipulation via Order Bump Product ID Substitu
CVE-2025-15691 WPFunnels < 3.13.0 - Unauthenticated User Registration via Opt-in Forms

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-19224

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