CVE-2018-20726 Cross-site scripting in n/a
An attacker can inject malicious scripts via the Website Hostname field in Cacti, 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
- Available
What is CVE-2018-20726?
CVE-2018-20726 is a medium-severity cross-site scripting vulnerability in Cacti Cacti, published on 16 Jan 2019. 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 cross-site scripting (XSS) vulnerability exists in host.php (via tree.php) in Cacti before 1.2.0 due to lack of escaping of unintended characters in the Website Hostname field for Devices.
Weakness: CWE-79
Which versions are affected by CVE-2018-20726?
It affects 1 product.
Products include Cacti Cacti.
How do I fix CVE-2018-20726?
Upgrade to a fixed version.
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-2018-20726 being exploited?
There is no known exploitation of CVE-2018-20726 in the wild and no public exploit code.
Other vulnerabilities in Cacti Cacti
- CVE-2022-46169 Cacti Command Injection
- CVE-2026-39893 Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
- CVE-2026-39938 Cacti: Unauthenticated RCE on Graph Image
- CVE-2026-39955 Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php
- CVE-2023-39361 Unauthenticated SQL Injection in graph_view.php in Cacti
Sources
Also known as DEBIAN-CVE-2018-20726, GHSA-39rw-hw3x-2qp8, UBUNTU-CVE-2018-20726.