QRLJacking or Quick Response Code Login Jacking is a simple social engineering attack vector capable of session hijacking affecting all applications that rely on the “Login with QR code” feature as a secure way to login into accounts.

In a nutshell, the victim scans the attacker’s QR code which results in session hijacking.

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Technical Paper

The technical paper clarifying everything about the QRLJacking attack vector can be found directly via our Wiki.
Vulnerable Web Applications and Services

There are a lot of well-known web applications and services which were vulnerable to this attack until the date we wrote this paper. Here are some examples (that we have reported) including, but not limited to:

Chat Applications

WhatsApp, WeChat, Line, Weibo, QQ Instant Messaging

Mailing Services

QQ Mail (Personal and Business Corporate), Yandex Mail


Alibaba, Aliexpress, Taobao, Tmall, 1688.com, Alimama, Taobao Trips

Online Banking

AliPay, Yandex Money, TenPay

Passport Services “Critical”

Yandex Passport (Yandex Mail, Yandex Money, Yandex Maps, Yandex Videos, etc…)

Mobile Management Software


Other Services

MyDigiPass, Zapper & Zapper WordPress Login by QR Code plugin, Trustly App, Yelophone, Alibaba Yunos

Demo Video

Attacking WhatsApp Web Application and performing a MITM attack to inject a bogus ad including WhatsApp QR Code


Credit : Mohamed Abdelbasset Elnouby