HOMEVULNERABILITIESCVE-2021-42171
HIGH

CVE-2021-42171

CWE-434Published: March 14, 2022· Updated: Jun 17, 2026

7.2
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2021-42171 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

tribalsystems1 product(s)
zenario
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.html
ADVISORYhttps://github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2
ADVISORYhttps://minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74
ADVISORYhttp://packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.html
ADVISORYhttps://github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2
ADVISORYhttps://minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74

All References (6)

→
http://packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.htmlExploit · Third Party Advisory
→
https://github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2Exploit · Issue Tracking · Third Party Advisory
→
https://minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74Third Party Advisory
→
http://packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.htmlExploit · Third Party Advisory
→
https://github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2Exploit · Issue Tracking · Third Party Advisory
→
https://minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74Third Party Advisory

Quick Facts

CVE IDCVE-2021-42171
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedMar 14, 2022

Related CVEs (CWE-434)

CVE-2024-50473
10.0
CVE-2019-7257
10.0
CVE-2024-50482
10.0
CVE-2020-35489
10.0
CVE-2026-61424
10.0
CVE-2024-50420
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-42171 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2021-42171·NVD