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Manageengine Supportcenter PlusApplication · Zohocorp

CVE-2021-43294

MEDIUM · 6.1 CVSS v3.1 Published 2021-11-30
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 · unedited
Zoho ManageEngine SupportCenter Plus before 11016 is vulnerable to Reflected XSS in the Products module.

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 confidence

Reflected XSS vulnerability in the Products module of Zoho ManageEngine SupportCenter Plus versions before 11016. The vulnerability allows an attacker to inject malicious scripts through unsanitized user input that gets reflected back to the victim's browser, potentially stealing session cookies or performing actions on behalf of the user.

MitigationUpgrade ManageEngine SupportCenter Plus to version 11016 or later to obtain the patch for this vulnerability. Apply within the timeframe indicated by your risk assessment given the CVSS 6.1 score.

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
Manageengine Supportcenter PlusApplication
Affected:= 11.0

CVSS 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
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm SupportCenter Plus installation
    Identify if Zoho ManageEngine SupportCenter Plus is installed in your environment. Check for the service running on typical ports (8080, 8443, or custom port configured during installation) or locate the installation directory.
    Affected if SupportCenter Plus is not installed on the system
  2. Determine installed version
    Access the SupportCenter Plus admin interface and navigate to the About or Support section, or check the version file in the installation directory if you have file system access. Typical locations include the 'bin' or 'lib' folders where a version.txt or similar file may contain the build number.
    Affected if Version is 11016 or higher (not affected) or version cannot be determined (assume affected)
  3. Verify version is within affected range
    Compare your identified version against the affected range. The vulnerability affects versions before 11016, including version 11.0 as explicitly listed.
    Affected if Installed version is before 11016 (including version 11.0)
  4. Confirm Products module accessibility
    Determine if the Products module is accessible to users. This module is typically found in the support portal where users can browse or search product information. Check if unauthenticated or low-privilege users can access this functionality.
    Affected if Products module is exposed and users can submit input that gets reflected back

Your environment is affected if SupportCenter Plus version 11016 or higher is not installed AND the Products module is accessible, allowing user input to be reflected without sanitization.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade ManageEngine SupportCenter Plus to version 11016 or later to obtain the patch for this vulnerability. Apply within the timeframe indicated by your risk assessment given the CVSS 6.1 score.

Recommended fix Moderate confidence

ManageEngine SupportCenter Plus version 11016 or later

  1. 1. Back up your current SupportCenter Plus installation and database before proceeding with any upgrade.
  2. 2. Download ManageEngine SupportCenter Plus version 11016 or later from the official ManageEngine download page.
  3. 3. Stop the SupportCenter Plus service.
  4. 4. Run the installer/upgrade executable for version 11016.
  5. 5. Follow the on-screen upgrade wizard instructions, preserving your existing configuration and data.
  6. 6. After upgrade completes, start the SupportCenter Plus service.
  7. 7. Verify the Products module is accessible and test that the XSS vulnerability is remediated by attempting to inject a benign test payload in the Products module URL parameters.
  8. 8. Confirm all users can log in and access the Products module normally.
Caveat Review ManageEngine release notes for version 11016 for any configuration or feature changes that may affect your deployment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Manageengine Supportcenter Plus Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-43294 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data