CVE-2017-9555
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 PixlrEditorHandler.php in Synology Photo Station before 6.7.0-3414 allows remote attackers to inject arbitrary web script or HTML via the image parameter.
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 reflected cross-site scripting (XSS) vulnerability exists in PixlrEditorHandler.php of Synology Photo Station. The image parameter is not properly sanitized, allowing remote attackers to inject arbitrary JavaScript or HTML that executes in victims' browsers when they access crafted URLs.
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<= 6.6.3-3347CVSS 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 Photo Station is installedAccess your Synology DSM web interface, open Package Center, and verify that Photo Station package is installed.Affected if Photo Station is not installed on the system.
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Identify installed Photo Station versionIn DSM Package Center, click on Photo Station and view the version number displayed, or access Photo Station directly and check the version via Help > About.Affected if Version is 6.6.3-3347 or lower.
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Verify PixlrEditorHandler.php is accessibleAttempt to access the endpoint /photo/pixlr/PixlrEditorHandler.php on your Photo Station web server (e.g., https://your-server/photo/pixlr/PixlrEditorHandler.php). Check if the page loads or returns a valid HTTP response.Affected if The endpoint responds with content rather than a 404 error, indicating the vulnerable script exists.
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Check if image parameter accepts unsanitized inputIf the endpoint is accessible, inspect whether the 'image' parameter can be manipulated via URL query string (e.g., ?image=<script>alert(1)</script>) without input validation or output encoding being applied.Affected if Arbitrary JavaScript or HTML in the image parameter executes in the browser without being escaped.
You are affected if Photo Station version is 6.6.3-3347 or lower and the PixlrEditorHandler.php endpoint is accessible and accepts unsanitized input via the image parameter.
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 Photo Station to version 6.7.0-3414 or later. As a temporary workaround, implement input validation and output encoding on the image parameter before processing.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2017-9555 — 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-2017-9555 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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