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CVE-2026-16304— WP Event Manager < 3.4.2 - Subscriber+ Arbitrary Post Takeover via event_organizer_ids

Quick assessment

Affected
Unknown WP Event Manager
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.

WP Event Manager 插件在 3.4.2 版本之前，未能对其前端表单处理的用户提供帖子标识符进行所有权或类型的正确验证。这导致任何拥有订阅者（Subscriber）或更高权限账户的用户，均可将任意帖子的作者归属重新分配给自己，并强制发布这些帖子。该漏洞会导致内容被接管，并造成原本处于私密或草稿状态的内容被公开披露。此漏洞的利用前提是相关的前端功能已被启用。

AI Predicted 7.5 Difficulty: Easy EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown WP Event Manager < 3.4.2 affected
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I. Basic Information for CVE-2026-16304

Vulnerability Information
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Vulnerability Title
WP Event Manager < 3.4.2 - Subscriber+ Arbitrary Post Takeover via event_organizer_ids
Source: CVE Program / CVE List V5
Vulnerability Description
The WP Event Manager WordPress plugin before 3.4.2 does not properly validate ownership or the type of the user-supplied post identifiers processed by one of its frontend forms, allowing any user with a Subscriber account or above to reassign the authorship of arbitrary posts to themselves and to force them to be published. This results in content takeover and in the public disclosure of otherwise private or draft content, and requires the relevant frontend feature to be enabled.
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 WP Event Manager 0 ~ 3.4.2 -

II. Public POCs for CVE-2026-16304

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III. Intelligence Information for CVE-2026-16304

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Other References for CVE-2026-16304 (1)

Same Patch Batch · Unknown · 2026-11-05 · 29 CVEs total

CVE-2026-107776 2.2 LOW Dokan < 5.3.3 - Vendor+ Reverse Withdrawal Ledger Credit Without Payment via Discount Coup
CVE-2025-15701 Easy Social Icons < 4.0.3 - Admin+ Stored XSS via Icon Color Settings
CVE-2026-85347 FV Player < 7.5.56.7212 - Contributor+ Stored XSS via Text Lightbox Caption
CVE-2026-85351 FV Player < 7.5.56.7212 - Contributor+ SSRF via Media Library Import
CVE-2026-85346 FV Player < 7.5.56.7212 - Subscriber+ Cloud Storage File Disclosure via Media Browser Hand
CVE-2026-19256 All In One Login 2.4.0 - 2.4.1 - Unauthenticated Account Takeover via Email OTP Brute Forc
CVE-2026-86442 WP Event Manager 3.4.0 - 3.4.1 - Unauthenticated Unpublished Post Overwrite via IDOR
CVE-2026-86795 Community Events < 1.6.0 - Unauthenticated Pending Events Disclosure via ajax_admin_event_
CVE-2026-85570 Tutor LMS 1.6.4 - 4.1.3 - Subscriber+ Quiz Answer Key Disclosure
CVE-2026-87856 Subscriptions for WooCommerce 2.0.0 - 2.1.0 - Unauthenticated Membership Content Restricti
CVE-2026-88814 YITH WooCommerce Gift Cards < 4.38.1 - Unauthenticated Gift Card Balance Double-Spending v
CVE-2026-90964 Essential Real Estate < 5.3.5 - Unauthenticated Arbitrary Email Sending
CVE-2026-90966 Essential Real Estate < 5.3.5 - Customer+ Arbitrary Paid Package Activation and Forged Pai
CVE-2026-90965 Essential Real Estate < 5.3.5 - Unauthenticated Unpublished Listing Image Disclosure
CVE-2026-90963 Essential Real Estate < 5.3.5 - Unauthenticated Unpublished Property Listing and Agent Con
CVE-2025-15702 Cloud Blocks <= 1.1.8 - Unauthenticated Stored XSS
CVE-2026-91049 EWWW Image Optimizer 8.7.4 - 8.9.0 - Author+ Stored XSS via 'data-script' Lazy Load Attrib
CVE-2026-90967 Essential Real Estate < 5.3.5 - Customer+ Invoice PII Disclosure via IDOR
CVE-2026-100144 IVPAY payments <= 1.0.8 - Unauthenticated SQLi via 'payment_id' Parameter
CVE-2026-107775 Dokan < 5.3.3 - Admin+ Cross-Site Vendor Activation

Showing top 20 of 29 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: WP Event Manager
Same vendor: Unknown