CVE-2018-6806

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.62%
Third-Party Advisory markedapp.com Third-Party Advisory lynxsecurity.io
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.lynxsecurity.io/releases/Local%20File%20Disclosure%20in%20Marked2.pdf third party advisory exploit
http://support.markedapp.com/discussions/questions/9089-reporting-a-vulnerability third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2018-6806?
CVE-2018-6806 has been scored as a medium severity vulnerability.
How to fix CVE-2018-6806?
To fix CVE-2018-6806, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-6806 being actively exploited in the wild?
It is possible that CVE-2018-6806 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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