CVE-2017-20034 PHPList List Name Persistent cross site scriting

Low 3.5 Published 10 Jun 2022 Updated 15 Apr 2025

Persistent cross-site scripting in PHPList allows remote attackers to inject malicious scripts via list names, potentially leading to session hijacking or code execution.

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-2017-20034?

CVE-2017-20034 is a low-severity cross-site scripting vulnerability in unspecified PHPList, published on 10 Jun 2022. 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 vulnerability classified as problematic was found in PHPList 3.2.6. This vulnerability affects unknown code of the file /lists/admin/ of the component List Name. The manipulation leads to cross site scripting (Persistent). The attack can be initiated remotely. Upgrading to version 3.3.1 is able to address this issue. It is recommended to upgrade the affected component.

Weakness: CWE-79, CWE-80

Which versions are affected by CVE-2017-20034?

It affects 1 product.

Products include Phplist Phplist.

How do I fix CVE-2017-20034?

No fix has been published for CVE-2017-20034 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-2017-20034 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20034 exists.

Sources

Also known as GHSA-659x-gwx9-46gq.