CVE-2018-6654

PoC —

CVSS 3.0

8.8 high

EPSS

<1%p42

Published

Feb 6, 2018 (Feb 6, 2018)

Modified

Jun 17, 2026

Description

The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover authentication tokens via an 'action: "user"' request to iframe.gr_-ifr, because the exposure of these tokens is not restricted to any specific web site.

Vendors: grammarly
Products: grammarly
Weakness: CWE-346
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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