CVE-2020-19277 Phachon mm-wiki vulnerable to stored cross-site scripting (XSS)

Medium 5.4 Published Updated

Remote attackers can execute arbitrary code via JavaScript injection in the markdown editor of mm-wiki.

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

What is CVE-2020-19277?

CVE-2020-19277 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Apr 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Cross Site Scripting vulnerability found in Phachon mm-wiki v.0.1.2 allows a remote attacker to execute arbitrary code via javascript code in the markdown editor.

Weakness: CWE-79

Which versions are affected by CVE-2020-19277?

2 open source packages ship an affected version, including github.com/phachon/mm-wiki. It affects 1 product.

PackageAffectedFixed in
github.com/phachon/mm-wiki GoAll versions to 0.1.2None
github.com/phachon/mm-wiki GoAll versions to 0.1.2None

Products include Mm-Wiki Project Mm-Wiki.

How do I fix CVE-2020-19277?

No fix has been published for CVE-2020-19277 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-2020-19277 being exploited?

There is no known exploitation of CVE-2020-19277 in the wild and no public exploit code.

Sources

Also known as GHSA-f7rp-xx67-4pj9.

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