🛡️ CVE-2021-46036 — ms-mcms

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

Description

File upload leading to RCE in MCMS

An arbitrary file upload vulnerability in the component /ms/file/uploadTemplate.do of MCMS v5.2.4 allows attackers to execute arbitrary code.

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-2021-46036 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-2021-46036 is recorded against 1 package.

  • net.mingsoft:ms-mcms

Timeline and source

Published on 19 February 2022 and last revised on 19 February 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
lycshub.github.io (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 2022-02-19
Updated 2026-08-12
Modified 2024-02-19
Fix URL N/A

Affected Packages

Software From version Fixed in
net.mingsoft:ms-mcms — —

Similar Threats

Exploit Protection

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CVE-2021-46036 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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