🛡️ CVE-2021-3816 on Debian — cacti

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

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.

Distribution advisory

This page covers CVE-2021-3816 as tracked by Debian, for the package cacti. The fix is available in version 1.2.1+ds1-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

Affected software

DEBIAN-CVE-2021-3816 is recorded against 1 package.

cacti (fixed in 1.2.1+ds1-1)

Timeline and source

Published on 19 January 2022 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2021-3816 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2022-01-19

Updated 2026-08-11

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
cacti	—	1.2.1+ds1-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2021-3816

🔗 NVD 🔗 Mitre

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