CVE-2020-15177 Unauthenticated Stored XSS in GLPI

High 8.0 Published Updated

Unauthenticated attackers can inject malicious scripts via installation settings, leading to session hijacking or data theft in GLPI.

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-2020-15177?

CVE-2020-15177 is a high-severity cross-site scripting vulnerability in Glpi-Project Glpi, published on 7 Oct 2020. 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 GLPI before version 9.5.2, the `install/install.php` endpoint insecurely stores user input into the database as `url_base` and `url_base_api`. These settings are referenced throughout the application and allow for vulnerabilities like Cross-Site Scripting and Insecure Redirection Since authentication is not required to perform these changes,anyone could point these fields at malicious websites or form input in a way to trigger XSS. Leveraging JavaScript it's possible to steal cookies, perform actions as the user, etc. The issue is patched in version 9.5.2.

Weakness: CWE-79

Which versions are affected by CVE-2020-15177?

It affects 1 product.

Products include Glpi-Project Glpi.

How do I fix CVE-2020-15177?

No fix has been published for CVE-2020-15177 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-2020-15177 being exploited?

There is no known exploitation of CVE-2020-15177 in the wild and no public exploit code.

All Glpi-Project Glpi vulnerabilities

Sources

Also known as GHSA-prvh-9m4h-4m79, UBUNTU-CVE-2020-15177.

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