CVE-2019-12172 Path traversal in n/a

High 7.8 Published 17 May 2019 Updated 4 Aug 2024

Attackers can execute arbitrary code by exploiting path traversal in file URLs within HTML area tags in Typora.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-12172?

CVE-2019-12172 is a high-severity path traversal vulnerability in n/a, published on 17 May 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Typora 0.9.9.21.1 (1913) allows arbitrary code execution via a modified file: URL syntax in the HREF attribute of an AREA element, as demonstrated by file:\\\ on macOS or Linux, or file://C| on Windows. This is different from CVE-2019-12137.

Weakness: CWE-22

Which versions are affected by CVE-2019-12172?

It affects 1 product.

Products include Typora Typora.

How do I fix CVE-2019-12172?

No fix has been published for CVE-2019-12172 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-12172 being exploited?

There is no known exploitation of CVE-2019-12172 in the wild and no public exploit code.

Sources

Also known as GHSA-j8m6-hgfm-cp2q.