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CVE-2026-13169— Eventin < 4.1.21 - Contributor+ Arbitrary Event Modification, Deletion and Ownership Takeover via IDOR

Quick assessment

Affected
Unknown Eventin
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.

在 Eventin WordPress 插件 4.1.21 之前的版本中，未能正确验证事件的归属权，便允许对这些事件进行修改、删除或重新分配给其他作者。这导致拥有“贡献者”级访问权限及更高权限的用户，可以修改、删除或接管由其他用户（包括管理员）创建的事件。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Eventin < 4.1.21 affected
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I. Basic Information for CVE-2026-13169

Vulnerability Information
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Vulnerability Title
Eventin < 4.1.21 - Contributor+ Arbitrary Event Modification, Deletion and Ownership Takeover via IDOR
Source: CVE Program / CVE List V5
Vulnerability Description
The Eventin WordPress plugin before 4.1.21 does not properly verify ownership of events before allowing them to be modified, deleted, or reassigned to a different author, allowing users with contributor-level access and above to alter, delete, or take over events created by other users including administrators.
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 Eventin 0 ~ 4.1.21 -

II. Public POCs for CVE-2026-13169

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III. Intelligence Information for CVE-2026-13169

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Other References for CVE-2026-13169 (1)

Same Patch Batch · Unknown · 2026-08-19 · 38 CVEs total

CVE-2026-18779 TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Appointment and Payment Record De
CVE-2026-17565 Animation Addons for Elementor < 2.7.2 - Unauthenticated Server-Side Request Forgery
CVE-2026-18466 WP Maps < 4.9.8 - Subscriber+ Unlimited Autoloaded Option Creation
CVE-2026-18051 W3 Total Cache < 2.10.5 - Unauthenticated Arbitrary Directory File Write and .htaccess Ove
CVE-2026-18231 WP Directory Kit < 1.5.7 - Unauthenticated User Email Disclosure via select_2_ajax_user
CVE-2026-18202 JetEngine < 3.8.14 - Author+ Stored XSS via SVG Upload
CVE-2026-18776 TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Account Takeover via Multiple AJA
CVE-2026-18778 TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Customer PII Disclosure via Multi
CVE-2026-18777 TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Arbitrary Appointment Status Chan
CVE-2026-18937 Broken Link Checker < 2.4.12 - Unauthenticated RCE via Query Variable Injection
CVE-2026-18031 TabaPay Gateway <= 1.4.0 - Unauthenticated Account Takeover via Payment Callback
CVE-2026-19055 ProSolution WP Client < 2.0.11 - Reflected XSS via Multiple Parameters
CVE-2026-19709 Membership For WooCommerce < 3.1.2 - Unauthenticated Member Data Disclosure via REST Consu
CVE-2026-19056 ProSolution WP Client < 2.0.11 - Reflected XSS via 'page' Parameter
CVE-2026-19416 KiviCare < 4.5.4 - Patient+ Cross-Patient Appointment Modification via IDOR
CVE-2026-19406 Easy Appointments < 4.0.1 - Contributor+ Sensitive Information Disclosure via REST Appoint
CVE-2026-19417 KiviCare < 4.5.4 - Patient+ Arbitrary Media Attachment Read via IDOR
CVE-2026-19782 WPS Bidouille < 1.33.5 - Subscriber+ User Email Disclosure via wps_get_users
CVE-2026-19842 SAML Single Sign On 4.8.85 - 5.4.6 - Unauthenticated Administrator Account Takeover via SA
CVE-2026-14861 User Verification <= 2.0.47 - Unauthenticated Arbitrary Account Lockout via IDOR

Showing top 20 of 38 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Eventin
Same vendor: Unknown

V. Comments for CVE-2026-13169

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