🛡️ CVE-2021-42171 — zenario

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-434 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Unrestricted Upload of File with Dangerous Type in Zenario CMS

Zenario CMS 9.0.54156 is vulnerable to File Upload. The web server can be compromised by uploading and executing a web-shell which can run commands, browse system files, browse local resources, attack other servers, and exploit the local vulnerabilities, and so forth.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2021-42171 is classified as CWE-434: Unrestricted Upload of File with Dangerous Type. Uploads are accepted without restricting type, so an executable file can be placed where the server will run it.

Affected software

CVE-2021-42171 is recorded against 1 package.

  • tribalsystems/zenario (fixed in 9.0.55143)

Timeline and source

Published on 15 March 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)
minhnq22.medium.com (Web)
packetstormsecurity.com (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-434
Public Exploit ✅ No
Source OSV
Published 2022-03-15
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
tribalsystems/zenario — 9.0.55143

Similar Threats

Exploit Protection

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