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CVE-2026-78276— WordPress Fluent Boards Pro plugin <= 2.0.11 - PHP Object Injection vulnerability

Quick assessment

Affected
WP Manage Ninja Fluent Boards Pro
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.

WordPress FluentBoards Pro是WordPress基金会的一款项目管理看板插件。 WordPress FluentBoards Pro 2.0.11及之前版本存在反序列化注入漏洞，该漏洞源于PHP对象注入。

CVSS 7.2 · High EPSS 0.54% · P44

Affected Version Matrix 1

VendorProduct Version RangeStatus
WP Manage Ninja Fluent Boards Pro n/a≤ 2.0.11 affected
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I. Basic Information for CVE-2026-78276

Vulnerability Information
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Vulnerability Title
WordPress Fluent Boards Pro plugin <= 2.0.11 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Editor PHP Object Injection in Fluent Boards Pro <= 2.0.11 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress FluentBoards Pro 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress FluentBoards Pro是WordPress基金会的一款项目管理看板插件。 WordPress FluentBoards Pro 2.0.11及之前版本存在反序列化注入漏洞，该漏洞源于PHP对象注入。
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
WP Manage Ninja Fluent Boards Pro n/a ~ 2.0.11 -

II. Public POCs for CVE-2026-78276

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III. Intelligence Information for CVE-2026-78276

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Security Blog Posts for CVE-2026-78276 (1)

Same Patch Batch · WP Manage Ninja · 2026-08-27 · 7 CVEs total

CVE-2026-78274 9.1 CRITICAL WordPress Fluent Boards Pro plugin <= 2.0.11 - Arbitrary File Upload vulnerability
CVE-2026-81273 8.1 HIGH WordPress FluentBooking Pro plugin <= 2.2.4 - Cross Site Request Forgery (CSRF) vulnerabil
CVE-2026-78271 7.2 HIGH WordPress FluentCRM Pro plugin <= 3.1.12 - Privilege Escalation vulnerability
CVE-2026-78275 6.8 MEDIUM WordPress Fluent Boards Pro plugin <= 2.0.11 - Arbitrary File Deletion vulnerability
CVE-2026-78273 6.5 MEDIUM WordPress Fluent Boards Pro plugin <= 2.0.11 - Cross Site Scripting (XSS) vulnerability
CVE-2026-81272 4.9 MEDIUM WordPress FluentPlayer Pro plugin <= 1.3.2 - Broken Access Control vulnerability

IV. Related Vulnerabilities

Same product: Fluent Boards Pro
Same vendor: WP Manage Ninja
Same weakness: CWE-502

V. Comments for CVE-2026-78276

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