What’s Vulnerable › Vulnerabilities

CVE-2018-20726

• Severity: medium (CVSS 5.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-01-16 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• cacti: before 1.2.0 — fixed in 1.2.0

How to fix

Upgrade to a fixed version: cacti 1.2.0. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00042.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00048.html
• https://github.com/Cacti/cacti/blob/develop/CHANGELOG
• https://github.com/Cacti/cacti/commit/80c2a88fb2afb93f87703ba4641f9970478c102d
• https://github.com/Cacti/cacti/issues/2213
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00042.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00048.html
• https://github.com/Cacti/cacti/blob/develop/CHANGELOG

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