CVE-2018-20212 Cross-site scripting in n/a

Medium 6.1 Published 17 Mar 2019 Updated 5 Aug 2024

An attacker can execute arbitrary scripts in the victim's browser via the webs parameter in TWiki, potentially leading to session hijacking or data theft.

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-2018-20212?

CVE-2018-20212 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Mar 2019. 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

bin/statistics in TWiki 6.0.2 allows cross-site scripting (XSS) via the webs parameter.

Weakness: CWE-79

Which versions are affected by CVE-2018-20212?

It affects 1 product.

Products include Twiki Twiki.

How do I fix CVE-2018-20212?

No fix has been published for CVE-2018-20212 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-2018-20212 being exploited?

There is no known exploitation of CVE-2018-20212 in the wild and no public exploit code.

Sources

Also known as GHSA-c46v-4vj7-pv76.