CVE-2026-121779— WordPress YITH WooCommerce Subscription plugin <= 4.22.0 - Sensitive Data Exposure vulnerability

Quick assessment

Affected

YITH YITH WooCommerce Subscription

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.

YITH WooCommerce Subscription 插件（yith-woocommerce-subscription）存在“敏感系统信息暴露给未授权控制域”的漏洞，导致攻击者能够检索嵌入的敏感数据。该问题影响 YITH WooCommerce Subscription 插件从未知版本起至 4.22.0 版本（含）的所有版本。

CVSS 5.3 · Medium EPSS 0.20% · P10 Updated Nov 08, 2026

Possible ATT&CK Techniques 2 AI

T1190 · Exploit Public-Facing Application T1040 · Network Sniffing

Affected Version Matrix 1

Vendor	Product	Version Range	Status
YITH	YITH WooCommerce Subscription	`≤ 4.22.0`	affected

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Vulnerability Information

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Vulnerability Title

WordPress YITH WooCommerce Subscription plugin <= 4.22.0 - Sensitive Data Exposure vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in YITH YITH WooCommerce Subscription yith-woocommerce-subscription allows Retrieve Embedded Sensitive Data.This issue affects YITH WooCommerce Subscription: from n/a through 4.22.0.

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

将系统数据暴露到未授权控制的范围

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
YITH	YITH WooCommerce Subscription	0 ~ 4.22.0	-

II. Public POCs for CVE-2026-121779

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-121779

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Other References for CVE-2026-121779 (1)

https://patchstack.com/database/wordpress/plugin/yith-woocommerce-subscription/vulnerability/wordpress-yith-woocommerce-subscription-plugin-4-22-0-sensitive-data-exposure-vulnerability?_s_id=cve vdb-entry

https://www.cve.org/CVERecord?id=CVE-2026-121779

IV. Related Vulnerabilities

Same vendor: YITH

Same weakness: CWE-497