CVE-2016-4888
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 · uneditedCross-site scripting (XSS) vulnerability in ZOHO ManageEngine ServiceDesk Plus before 9.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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 reflected Cross-Site Scripting (XSS) vulnerability in ZOHO ManageEngine ServiceDesk Plus versions prior to 9.2. Attackers can inject malicious HTML or JavaScript code through unspecified input vectors, which then executes in the browsers of users who view the crafted content, potentially allowing session hijacking or credential theft.
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<= 9.1CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/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 checksWork through these to decide whether this CVE applies to you.
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Locate the installed ServiceDesk Plus versionAccess the ServiceDesk Plus web interface and navigate to the About or Help section, typically found in the admin dashboard or under the Help menu. The version number is usually displayed on the About page.Affected if The version displayed is 9.1 or earlier (any version <= 9.1)
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Verify the exact version numberCheck the build number or full version string if shown (for example, 9.1.0, 9.0 SP-1, etc.). Compare this against the affected version range.Affected if The full version indicates a release prior to the 9.2 update (such as 9.1, 9.0, 8.x, or earlier)
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Confirm admin or user access to the applicationLog into ServiceDesk Plus as a regular user or administrator to access the helpdesk interface where user-supplied data is processed.Affected if The application is accessible and functional, meaning user input fields are available for potential injection
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Inspect for reflected content in URLsReview browser address bars and HTTP request parameters when submitting forms or clicking links within the application. Note any URL parameters that reflect user input back into the page.Affected if User-supplied values appear reflected in the page content or URL without proper encoding
The environment is affected if ServiceDesk Plus is installed at version 9.1 or earlier, since this reflected XSS vulnerability exists in versions prior to 9.2.
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.
From vendor dataUpgrade ManageEngine ServiceDesk Plus to version 9.2 or later. As an interim control, implement robust input validation and output encoding on all user-supplied data, and consider deploying a WAF to detect and block XSS attempts.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-4888 — 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-2016-4888 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
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