CVE-2020-36399 Cross-site scripting in n/a

Medium 5.4 Published Updated

Attackers can execute arbitrary scripts via stored XSS in the Bounce Rules module, potentially compromising user sessions.

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-2020-36399?

CVE-2020-36399 is a medium-severity cross-site scripting vulnerability in n/a, published on 2 Jul 2021. 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 cross site scripting (XSS) vulnerability in phplist 3.5.4 and below allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the "rule1" parameter under the "Bounce Rules" module.

Weakness: CWE-79

Which versions are affected by CVE-2020-36399?

1 open source package ship an affected version, including phplist. It affects 1 product.

PackageAffectedFixed in
phplist BitnamiAll versions3.5.4

Products include Phplist Phplist.

How do I fix CVE-2020-36399?

Upgrade phplist to 3.5.4 or later.

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-2020-36399 being exploited?

There is no known exploitation of CVE-2020-36399 in the wild and no public exploit code.

Sources

Also known as BIT-phplist-2020-36399, GHSA-925w-g298-9j86.

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