Krytyczna

Improper Neutralization of Input During Web Page Generation in Nukium - NKM GLS module for PrestaShop

Ujawniono: 14.11.2023
Aktualizacja: 11.10.2026 10:22

In the module “NKM GLS” (nkmgls) up to version 3.0.1 from Nukium for PrestaShop, a guest (authenticated customer) can perform XSS injection of type 2 (stored XSS) from FRONT to BACK (F2B) of Category 2 within the funnel order in affected versions.

Note : To succeed in this exploit, the red team needs to pay to convert a cart into a valid order with GLS carrier and require the administrator of the PS to check a specific screen within its backoffice.

As all XSS type 2 (Stored XSS) F2B (Front to Back), there are two steps and a prerequisite.

Prerequisite :

The field phone_mobile within table gls_cart_carrier suffers from a type varchar(255) which is large enough to allow dangerous XSS payloads.

Steps :

The method NkmGlsCheckoutModuleFrontController::displayAjaxSavePhoneMobile does not properly clean the parameter gls_customer_mobile. pSQL is useless against XSS which exploits HTML tag attributes (Category 2 according to OWASP - pSQL only neutralized Category 1 thanks to its strip_tags).

The output in the backoffice is not escaped in the related smarty template that uses it.

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Platforma	Paczka	Podatne wersje	Poprawka w wersji
Moduł PrestaShop	nkmgls	<= 3.0.1 <= 3.0.1 (3.0.2 fixed the vulnerability)	3.0.2

Odnośniki

https://security.friendsofpresta.org/modules/2023/11/14/nkmgls.html

Ocena CVSS 9/10

Wektor CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Słabość (CWE): CWE-79
Platforma: PrestaShop
Paczka: nkmgls
Ujawniono: 14.11.2023
Aktualizacja: 11.10.2026 10:22

Źródła i licencje

Friends-Of-Presta - CVE-2023-47309 - MIT

MIT

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