CVE-2021-42002
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedZoho ManageEngine ADManager Plus before 7115 is vulnerable to a filter bypass that leads to file-upload remote code execution.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceZoho ManageEngine ADManager Plus versions prior to 7115 contain a filter bypass vulnerability that allows attackers to circumvent security controls and upload malicious files, ultimately achieving remote code execution on the target system.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 7.1= 7.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm ADManager Plus installationLocate the ADManager Plus installation directory or identify the running service. Common locations include C:\ManageEngine\ADManager Plus (Windows) or /opt/ManageEngine/ADManager_Plus (Linux). Check for the ADManager Plus service process.Affected if ADManager Plus is found installed on the system
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Identify installed version numberAccess the ADManager Plus About page via the admin console (typically /about.jsp) or check the version.txt file in the installation root directory. Note both the version number (7.1) and build/revision number (7115).Affected if The version shows 7.1 with build number below 7115, or any version below 7.1
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Verify file upload capability is accessibleCheck if the attachment or file upload feature in the ADManager Plus web interface is enabled and accessible to users. This includes reports attachment features, custom column uploads, or any feature allowing file attachments.Affected if File upload/attachment features are enabled and accessible to authenticated users
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Check for unauthorized uploaded filesInspect the ADManager Plus upload directories (commonly the 'storage' or 'attachments' subdirectories within the installation) for unexpected .jsp, .asp, .exe, or script files that were not intentionally deployed.Affected if Suspicious executable or script files are found in upload directories
The environment is affected if Zoho ManageEngine ADManager Plus version 7.1 (build below 7115) or any version below 7.1 is installed, and the file upload feature is accessible to users.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped7.1
Upgrade Zoho ManageEngine ADManager Plus to version 7115 or later to remediate this vulnerability.
Version 7115 or later
- 1. Back up your current ADManager Plus installation and configuration
- 2. Download the latest version (7115 or later) from the official ManageEngine download center at www.manageengine.com
- 3. Stop the ADManager Plus service
- 4. Install the upgraded version following the standard upgrade procedure
- 5. Start the ADManager Plus service
- 6. Verify the application is functioning correctly
- 7. Confirm the version number displays as 7115 or higher
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-42002 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-42002 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data