CVE-2026-39900: Cacti: Reflected XSS via tab parameter in auth_profile.php JavaScript context
Published Jun 24, 2026
·Updated
Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Reflected XSS via tab parameter in the authprofile.php JavaScript context. This issue has been fixed in version 1.2.31.
Affected Software
2 affected components
Cacti Cacti<=1.2.30
Cacti Cacti<1.2.31
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
cactito a version that resolves this vulnerability.Fixed in 1.2.31
Event History
Jun 24, 2026
CVE Published
via MITRE·10:37 PM
Data Sourced
via MITRE·10:37 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-39900?
The severity of CVE-2026-39900 is classified as medium with a CVSS score of 5.3.
2
How do I fix CVE-2026-39900?
To fix CVE-2026-39900, upgrade to Cacti version 1.2.31 or later.
3
What type of vulnerability is CVE-2026-39900?
CVE-2026-39900 is classified as a reflected XSS vulnerability.
4
Which versions of Cacti are affected by CVE-2026-39900?
Cacti versions 1.2.30 and prior are affected by CVE-2026-39900.
5
What file is involved in CVE-2026-39900?
The vulnerability occurs via the tab parameter in the auth_profile.php file.