XSS in Cacti

CVE-2021-3816

Cacti 1.1.38 allows authenticated users with User Management permissions to inject arbitrary HTML in the group_prefix field during the creation of a new group via "Copy" method at user_group_admin.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-3816: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Cacti — versions 1.1.38
  • Cacti — versions 1.1.38

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-3816?
CVE-2021-3816 is a medium-severity vulnerability in Cacti, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-01-19.
How severe is CVE-2021-3816?
Medium severity. CVSS v3 base score is 5.4 out of 10.