CVE-2026-107653— SureCart <= 4.9.4 - Unauthenticated Stored Cross-Site Scripting via 'manual-payment-instructions' Attribute of sc-order-manual-instructions in Comments

Quick assessment

Affected

surecart SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments

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.

WordPress 插件 SureCart（一款用于销售实体产品、数字下载、订阅、捐赠及支付功能的电商解决方案）在 4.9.4 及以下所有版本中，存在存储型跨站脚本（Stored XSS）漏洞。该漏洞源于对"comment"参数的输入过滤不足以及输出转义缺失。这使得未经身份验证的攻击者能够在页面中注入任意 Web 脚本，当用户访问被注入的页面时，这些脚本将自动执行。成功利用该漏洞需满足以下条件：注入的评论必须出现在加载了 SureCart Web 组件资源包（例如包含 SureCart“购买按钮”区块的页面）的页

CVSS 7.2 · High EPSS 0.28% · P21 Updated Nov 02, 2026

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

Vendor	Product	Version Range	Status
surecart	SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments	`≤ 4.9.4`	affected

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Vulnerability Information

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Vulnerability Title

SureCart <= 4.9.4 - Unauthenticated Stored Cross-Site Scripting via 'manual-payment-instructions' Attribute of sc-order-manual-instructions in Comments

Source: CVE Program / CVE List V5

Vulnerability Description

The SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.9.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful execution requires the injected comment to be visible on a page that loads SureCart's web-component bundle (e.g. a page containing a SureCart Buy Button block), and the comment must be auto-approved or approved by a moderator.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
surecart	SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments	0 ~ 4.9.4	-

II. Public POCs for CVE-2026-107653

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-107653

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Other References for CVE-2026-107653 (6)

https://www.cve.org/CVERecord?id=CVE-2026-107653

IV. Related Vulnerabilities

Same product: SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments

Same vendor: surecart

Same weakness: CWE-79