CVE-2020-26157 Cross-site scripting in n/a

Critical 9.6 Published Updated

An attacker can execute arbitrary code via XSS in note titles during syncing due to Node integration in Leanote Desktop.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-26157?

CVE-2020-26157 is a critical cross-site scripting vulnerability in n/a, published on 30 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Leanote Desktop through 2.6.2 allows XSS because a note's title is mishandled during syncing. This leads to remote code execution because of Node integration.

Weakness: CWE-79

Which versions are affected by CVE-2020-26157?

It affects 1 product.

Products include Leanote Leanote.

How do I fix CVE-2020-26157?

No fix has been published for CVE-2020-26157 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2020-26157 being exploited?

There is no known exploitation of CVE-2020-26157 in the wild and no public exploit code.

Sources

Also known as GHSA-pcw2-q3mm-wc8g.

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