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CVE-2026-78278— WordPress Fluent Boards Pro plugin <= 2.0.11 - Insecure Direct Object References (IDOR) vulnerability

Quick assessment

Affected
WP ManageNinja LLC 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.

Fluent Boards Pro ≤ 2.0.11 版本中存在订阅者不安全的直接对象引用（IDOR）漏洞。

CVSS 5.3 · Medium EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token

Affected Version Matrix 1

VendorProduct Version RangeStatus
WP ManageNinja LLC Fluent Boards Pro n/a≤ 2.0.11 affected
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I. Basic Information for CVE-2026-78278

Vulnerability Information
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Vulnerability Title
WordPress Fluent Boards Pro plugin <= 2.0.11 - Insecure Direct Object References (IDOR) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Subscriber Insecure Direct Object References (IDOR) in Fluent Boards Pro <= 2.0.11 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WP ManageNinja LLC Fluent Boards Pro n/a ~ 2.0.11 -

II. Public POCs for CVE-2026-78278

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III. Intelligence Information for CVE-2026-78278

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Vendor Advisories for CVE-2026-78278 (1)

Same Patch Batch · WP ManageNinja LLC · 2026-08-24 · 5 CVEs total

CVE-2026-78270 7.6 HIGH WordPress FluentCRM Pro plugin <= 3.1.12 - SQL Injection vulnerability
CVE-2026-78272 5.4 MEDIUM WordPress Fluent Support Pro plugin <= 2.3.1 - Broken Access Control vulnerability
CVE-2026-78279 5.4 MEDIUM WordPress Fluent Support Pro plugin <= 2.3.1 - Cross Site Request Forgery (CSRF) vulnerabi
CVE-2026-78277 4.9 MEDIUM WordPress FluentCRM Pro plugin <= 3.1.12 - Server Side Request Forgery (SSRF) vulnerabilit

IV. Related Vulnerabilities

Same product: Fluent Boards Pro
Same vendor: WP ManageNinja LLC
Same weakness: CWE-639

V. Comments for CVE-2026-78278

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