CVE-2015-9104
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) vulnerabilities in Synology Audio Station 5.1 before 5.1-2550 and 5.4 before 5.4-2857 allows remote authenticated attackers to inject arbitrary web script or HTML via the album title.
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 confidenceA stored cross-site scripting (XSS) vulnerability in Synology Audio Station versions 5.1 before 5.1-2550 and 5.4 before 5.4-2857 allows authenticated users to inject malicious JavaScript or HTML code into the album title field. When other users view the affected album, the injected payload executes in their browsers.
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= 5.1-2541= 5.1-2542= 5.1-2547= 5.1-2549= 5.4-2852= 5.4-2853= 5.4-2855CVSS 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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Verify Synology Audio Station is installedCheck the DSM package manager or list installed packages to confirm Audio Station is present on the Synology NAS.Affected if Audio Station is not installed on the system, the vulnerability does not apply.
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Determine the installed Audio Station versionAccess the DSM package center, click on Audio Station, and note the version number displayed; alternatively, check via command line using 'synopkg list' or the package info in the DSM interface.Affected if The installed version matches 5.1-2541, 5.1-2542, 5.1-2547, 5.1-2549, 5.4-2852, 5.4-2853, or 5.4-2855, indicating the system is running a vulnerable version.
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Confirm the album title feature is accessibleLaunch Audio Station and navigate to the music library section where albums are displayed; verify that album titles can be viewed and that the application handles album metadata.Affected if The album title functionality is not used or accessible, the XSS payload cannot be triggered.
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Inspect album titles for suspicious contentIn Audio Station, review the album list for any entries containing unusual characters such as <script>, javascript:, onload, or other HTML/JavaScript tags in the album title field; alternatively, query the database directly if CLI access is available.Affected if Any album title contains embedded HTML script tags or JavaScript event handlers, indicating active exploitation of this stored XSS vulnerability.
The system is affected if Synology Audio Station is installed with a version matching 5.1-2541, 5.1-2542, 5.1-2547, 5.1-2549, 5.4-2852, 5.4-2853, or 5.4-2855, or if any album title contains malicious script injection code.
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 dataApply the vendor security update to Synology Audio Station 5.1-2550 or 5.4-2857 or later to patch the XSS vulnerability in the album title input field.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2015-9104 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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