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CVE-2026-77183— FooSales <= 1.43.0 - Authenticated (Custom+) Privilege Escalation via create_update_customer REST Endpoint

Quick assessment

Affected
foosales FooSales – Point of Sale (POS) for WooCommerce
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 的 FooSales – Point of Sale (POS) for WooCommerce 插件在所有版本直至 1.43.0（含）均存在通过账户接管实现权限提升的漏洞。这是由于该插件在未充分验证用户身份的情况下，允许更新其个人资料（如邮箱地址）。攻击者一旦以认证身份获得 FooSales 收银员级别或更高权限，即可任意更改其他用户的邮箱地址，包括管理员账户。随后，攻击者可利用新设置的邮箱地址触发密码重置流程，从而接管该用户账户。

CVSS 8.8 · High EPSS 0.29% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
foosales FooSales – Point of Sale (POS) for WooCommerce ≤ 1.43.0 affected
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I. Basic Information for CVE-2026-77183

Vulnerability Information
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Vulnerability Title
FooSales <= 1.43.0 - Authenticated (Custom+) Privilege Escalation via create_update_customer REST Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
The FooSales – Point of Sale (POS) for WooCommerce plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 1.43.0. This is due to the plugin not properly validating a user's identity prior to updating their details like email. This makes it possible for authenticated attackers, with FooSales Cashier-level access and above, to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
foosales FooSales – Point of Sale (POS) for WooCommerce 0 ~ 1.43.0 -

II. Public POCs for CVE-2026-77183

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III. Intelligence Information for CVE-2026-77183

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Patches & Fixes for CVE-2026-77183 (2)

News Coverage for CVE-2026-77183 (1)

IV. Related Vulnerabilities

Same weakness: CWE-269

V. Comments for CVE-2026-77183

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