CVE-2018-14953 Cross-site scripting in n/a

Q: Is CVE-2018-14953 being exploited?

There is no known exploitation of CVE-2018-14953 in the wild and no public exploit code.

Medium 6.1 Published 5 Aug 2018 Updated 5 Aug 2024

Attackers can execute arbitrary scripts in victim browsers via crafted math tags in SquirrelMail, potentially leading to session hijacking.

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: Available

What is CVE-2018-14953?

CVE-2018-14953 is a medium-severity cross-site scripting vulnerability in Squirrelmail Squirrelmail, published on 5 Aug 2018. 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

The mail message display page in SquirrelMail through 1.4.22 has XSS via a "<math xlink:href=" attack.

Weakness: CWE-79

Which versions are affected by CVE-2018-14953?

It affects 1 product.

Products include Squirrelmail Squirrelmail.

How do I fix CVE-2018-14953?

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-2018-14953 being exploited?

There is no known exploitation of CVE-2018-14953 in the wild and no public exploit code.

All Squirrelmail Squirrelmail vulnerabilities

Sources

Also known as GHSA-255x-mvhm-3947, UBUNTU-CVE-2018-14953.