VULNERABILITY INTELLIGENCE

CVE-2018-6806

CVSS score6.5 MEDIUM

EPSS probability1.20%

CISA KEVNot currently listed

Published2018-02-07

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Description

Marked 2 through 2.5.11 allows remote attackers to read arbitrary files via a crafted HTML document that triggers a redirect to an x-marked://preview?text= URL. The value of the text parameter can include arbitrary JavaScript code, e.g., making XMLHttpRequest calls.

Weakness classification

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Primary references

cve@mitre.org — Issue Tracking, Third Party Advisory
cve@mitre.org — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory