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High, CVSS 7.1

MCMS Arbitrary File Deletion vulnerability

CVE-2021-46062GHSA-rpvr-mw7r-25xx

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (net.mingsoft:ms-mcms 5.2.11; net.mingsoft:ms-basic 2.1.16), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.1 · CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
EPSS
  • CVE-2021-46062: 0.77% estimated exploitation activity in the next 30 days; percentile 55.56 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

net.mingsoft:ms-basic is used for plugin management for applications built with Maven for the Mingfei Content Management System (MCMS). ms-basic before 2.1.16 is vulnerable to arbitrary file deletion using POST requests to /template/writeFileContent via the oldFileName parameter. MCMS before 5.2.11 is also vulnerable since it bundles vulnerable versions of ms-basic.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-rpvr-mw7r-25xx

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2021-46062

Advisory: MCMS Arbitrary File Deletion vulnerability
IDs: CVE-2021-46062, GHSA-rpvr-mw7r-25xx
Record: https://patchnext.com/advisories/cve-2021-46062 (revision 1, source checked 26 Oct 2026, 16:12 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: net.mingsoft:ms-mcms 5.2.11; net.mingsoft:ms-basic 2.1.16. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven net.mingsoft:ms-mcms: affected < 5.2.11; fixed in 5.2.11
- Maven net.mingsoft:ms-basic: affected < 2.1.16; fixed in 2.1.16

## Suggested inspection (read-only)
- Maven net.mingsoft:ms-mcms: check the installed version with your package manager.
- Maven net.mingsoft:ms-basic: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on net.mingsoft:ms-mcms, net.mingsoft:ms-basic.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-rpvr-mw7r-25xx (GitHub-reviewed advisory GHSA-rpvr-mw7r-25xx lists affected ranges: Maven net.mingsoft:ms-basic >=0 =0 <5.2.11)

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