CVE-2021-38298
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 7110 is vulnerable to blind XXE.
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 confidenceThis is a blind XML External Entity (XXE) injection vulnerability in Zoho ManageEngine ADManager Plus versions prior to 7110. An attacker can inject malicious XML payloads to cause the application to parse external entities and potentially exfiltrate sensitive data through out-of-band channels. The CVSS 9.8 score indicates this is remotely exploitable without authentication.
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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Identify if Zoho ManageEngine ADManager Plus is installedCheck for the ADManager Plus installation directory, typically found in C:\ManageEngine\ADManager Plus on Windows or /opt/ManageEngine/ADManagerPlus on Linux. Look for the product through system services or running processes.Affected if The product is installed on the system
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Determine the installed version of ADManager PlusNavigate to the ADManager Plus installation directory and locate the version file. Common locations include <install_dir>/build.txt or <install_dir>/version.txt. Alternatively, access the product UI and check the About or Version information typically found in the help or settings menu.Affected if The installed version is 7.1 or any version lower than 7110 (for example, 7.0, 6.x, etc.)
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Verify if XML-based request processing is enabledReview the application's XML parser configuration. In ADManager Plus, XML processing often occurs when importing or exporting data through XML formats, or when receiving certain API requests. Check the conf/application.properties or similar configuration files for XML-related settings.Affected if XML parsing functionality is actively used or enabled in the application configuration
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Check for exposed XML input endpointsReview the application's exposed web endpoints and APIs, particularly those accepting XML input. Common paths include API endpoints under /api/ or / servlet paths that handle XML-based imports or configurations.Affected if The application exposes endpoints that accept XML content without proper XML external entity (XXE) protection enabled
A user is affected if Zoho ManageEngine ADManager Plus is installed and the version is 7.1 or any version below 7110, with XML parsing functionality enabled.
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 ManageEngine ADManager Plus to version 7110 or later. Additionally, disable external entity processing in XML parsers and implement input validation for XML-based requests.
7110 or later (build 7110)
- Navigate to the ManageEngine ADManager Plus download page or official support portal
- Download version 7110 or later of ADManager Plus
- Back up the current ADManager Plus installation and database
- Stop the ADManager Plus service
- Install the updated version (7110 or later)
- Restart the ADManager Plus service
- Verify the application is running correctly and the XXE vulnerability is resolved
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
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Free · runs locallyCheck whether your project pulls in CVE-2021-38298 — 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-2021-38298 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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- 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