CVE-2019-18347 Cross-site scripting in n/a

Medium 5.4 Published Updated

Stored XSS in DAViCal allows attackers to execute JavaScript in other users' browsers via unsanitized user fields.

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
Available

What is CVE-2019-18347?

CVE-2019-18347 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Dec 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A stored XSS issue was discovered in DAViCal through 1.1.8. It does not adequately sanitize output of various fields that can be set by unprivileged users, making it possible for JavaScript stored in those fields to be executed by another (possibly privileged) user. Affected database fields include Username, Display Name, and Email.

Weakness: CWE-79

Which versions are affected by CVE-2019-18347?

It affects 1 product.

Products include Davical Davical.

How do I fix CVE-2019-18347?

Upgrade to a fixed version.

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-2019-18347 being exploited?

There is no known exploitation of CVE-2019-18347 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-18347, GHSA-92gq-cfj6-292h, UBUNTU-CVE-2019-18347.

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