CVE-2026-114451— Kadence Memberships < 4.0.6 - Unauthenticated Table Collation Downgrade via 'rcp-action' Parameter

Quick assessment

Affected

Unknown Membership Plugin

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.

Membership Plugin WordPress 插件在 4.0.6 版本之前，在执行会修改数据库结构的维护例程时，未进行任何授权验证或 CSRF（跨站请求伪造）检查。这使得未经身份验证的用户能够将 Membership Plugin WordPress 插件自身的数据库表转换为更窄的字符集，从而不可逆地将会员等级、折扣码和支付记录中的所有四字节字符（如表情符号和部分中日韩文字）替换为问号。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.10% · P1 Updated Nov 15, 2026

Possible ATT&CK Techniques 2 AI

T1485 · Data Destruction T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Unknown	Membership Plugin	`< 4.0.6`	affected

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Vulnerability Information

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Vulnerability Title

Kadence Memberships < 4.0.6 - Unauthenticated Table Collation Downgrade via 'rcp-action' Parameter

Source: CVE Program / CVE List V5

Vulnerability Description

The Membership Plugin WordPress plugin before 4.0.6 does not perform any authorization or CSRF check before running a schema-altering database maintenance routine, allowing unauthenticated users to convert the Membership Plugin WordPress plugin before 4.0.6's own tables to a narrower character set, which irreversibly replaces every 4-byte character (such as emoji and some CJK characters) in the membership level, discount code and payment records with a question mark.

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	Membership Plugin	0 ~ 4.0.6	-

II. Public POCs for CVE-2026-114451

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-114451

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https://www.cve.org/CVERecord?id=CVE-2026-114451

Same Patch Batch · Unknown · 2026-11-15 · 12 CVEs total

CVE-2026-127048		Lazy Blocks < 3.0.0 - Unauthenticated RCE
CVE-2026-124673		Burst Statistics < 3.7.5 - Unauthenticated Draft and Private Post Title Disclosure via For
CVE-2026-114452		Kadence Memberships 3.2.17 - 4.0.5 - Subscriber+ Stripe Client Secret Disclosure and Payme
CVE-2026-124671		Burst Statistics < 3.7.5 - Unauthenticated Analytics Disclosure Beyond Shared Report Date
CVE-2026-123707		WPGraphQL < 2.27.1 - Contributor+ Custom Post Status Content Disclosure
CVE-2026-110960		Auth Armor <= 1.0.3 - Unauthenticated Account Takeover
CVE-2026-110984		RegistrationMagic < 6.1.0.4 - Admin+ SQLi via 'rm_fromdate' and 'rm_dateupto' Parameters
CVE-2026-110989		RegistrationMagic 5.2.3.1 - 6.1.0.3 - Unauthenticated Non-Admin User Profile Modification
CVE-2026-110987		RegistrationMagic < 6.1.0.4 - Reflected XSS via 'rm_tr' and 'rm_ur' Parameters
CVE-2026-103361		Payment Gateway via Valitor for WooCommerce < 1.9.41 - Unauthenticated Payment Bypass via
CVE-2026-116559		A2Reviews <= 1.2.3 - Unauthenticated Plugin Data Modification and Disclosure

IV. Related Vulnerabilities

Same product: Membership Plugin

Same vendor: Unknown