CVE-2026-39777— WordPress WCFM Membership plugin <= 2.12.0 - Broken Access Control vulnerability

Quick assessment

Affected

WC Lovers WCFM Membership

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.

WCFM Membership（wc-multivendor-membership）插件存在缺少授权（Missing Authorization）漏洞，攻击者可利用其错误配置的访问控制安全级别进行利用。该问题影响 WCFM Membership 插件从未知版本至 2.12.0 版本。

CVSS 4.3 · Medium Updated Nov 04, 2026

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

Vendor	Product	Version Range	Status
WC Lovers	WCFM Membership	`≤ 2.12.0`	affected

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Vulnerability Information

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Vulnerability Title

WordPress WCFM Membership plugin <= 2.12.0 - Broken Access Control vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Missing Authorization vulnerability in WC Lovers WCFM Membership wc-multivendor-membership allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WCFM Membership: from n/a through 2.12.0.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制缺失

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
WC Lovers	WCFM Membership	0 ~ 2.12.0	-

II. Public POCs for CVE-2026-39777

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-39777

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Other References for CVE-2026-39777 (1)

https://patchstack.com/database/wordpress/plugin/wc-multivendor-membership/vulnerability/wordpress-wcfm-membership-plugin-2-12-0-broken-access-control-vulnerability-2?_s_id=cve vdb-entry

https://www.cve.org/CVERecord?id=CVE-2026-39777

IV. Related Vulnerabilities

Same product: WCFM Membership

Same vendor: WC Lovers

Same weakness: CWE-862