CVE-2015-9103
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 · uneditedMultiple cross-site scripting (XSS) vulnerabilities in Synology Note Station 1.1-0212 and earlier allow remote authenticated attackers to inject arbitrary web script or HTML via the (1) note title or (2) file name of attachments.
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 · high confidenceCross-site scripting (XSS) vulnerability in Synology Note Station allows authenticated users to inject arbitrary JavaScript or HTML through note titles and attachment file names. The application fails to properly sanitize user-supplied input in these fields before rendering them in the web interface.
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<= 1.1-0212CVSS 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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Confirm Synology Note Station is installedAccess Synology DiskStation Manager (DSM), navigate to Package Center, and verify Note Station appears in the installed packages list. Alternatively, check via SSH: grep -i 'NoteStation' /etc/syno-packages.confAffected if Note Station is listed as an installed package
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Determine the installed version of Note StationIn DSM Package Center, click on Note Station and view the version number displayed. Compare this version to the affected range: any version <= 1.1-0212Affected if Installed version is 1.1-0212 or lower
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Verify the Note Station web interface is accessibleAttempt to access the Note Station web interface via the Synology NAS hostname or IP (typically port 5000/5001), path typically /note/ or via the Note Station app. Confirm the application loads and accepts user input.Affected if The Note Station web interface is reachable and functional
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Confirm user authentication is enabledIn DSM, go to Control Panel > User & Group and verify that local users or directory server users exist and have access to Note Station. The XSS requires an authenticated user to inject malicious content.Affected if User authentication is enabled and users can log in to Note Station
You are affected if Note Station is installed with version 1.1-0212 or lower, the web interface is accessible, and user authentication is enabled, as the XSS flaw exists in the rendering of note titles and attachment filenames for authenticated 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.
From vendor dataUpgrade Synology Note Station to a version newer than 1.1-0212 that contains the security patch, or implement server-side input validation and output encoding for note titles and attachment filenames.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-9103 — 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-2015-9103 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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