CVE-2019-11876 PrestaShop Cross-site Scripting vulnerability

Medium 6.1 Published Updated

Reflected XSS in PrestaShop installation script allows attackers to execute scripts if users follow setup steps and click a malicious link.

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-2019-11876?

CVE-2019-11876 is a medium-severity cross-site scripting vulnerability in Drupal Drupal, published on 24 May 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

In PrestaShop 1.7.5.2, the shop_country parameter in the install/index.php installation script/component is affected by Reflected XSS. Exploitation by a malicious actor requires the user to follow the initial stages of the setup (accepting terms and conditions) before executing the malicious link.

Weakness: CWE-79

Which versions are affected by CVE-2019-11876?

2 open source packages ship an affected version, including prestashop/prestashop. It affects 2 products.

PackageAffectedFixed in
prestashop/prestashop PackagistFrom 1.7.5.21.7.6.0
prestashop/prestashop PackagistFrom 1.7.5.21.7.6.0

Products include Drupal Drupal, Prestashop Prestashop.

How do I fix CVE-2019-11876?

Upgrade prestashop/prestashop to 1.7.6.0 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-2019-11876 being exploited?

There is no known exploitation of CVE-2019-11876 in the wild and no public exploit code.

All Drupal Drupal vulnerabilities

Sources

Also known as GHSA-6grv-hw8g-4gfm.

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