CVE-2018-17058
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 · uneditedAn issue was discovered in JABA XPress Online Shop through 2018-09-14. It contains an arbitrary file upload vulnerability in the picture-upload feature of ProductEdit.aspx. An authenticated attacker may bypass the frontend filename validation and upload an arbitrary file via FileUploader.aspx.cs in FileUploader.aspx by using empty w and h parameters. This file may contain arbitrary aspx code that may be executed by accessing /Jec/ProductImages/<number>/<filename>. Accessing the file once uploaded does not require authentication.
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 confidenceJABA XPress Online Shop contains an arbitrary file upload vulnerability where an authenticated attacker bypasses frontend filename validation in FileUploader.aspx by submitting empty w and h parameters, allowing upload of malicious ASPX files that execute when accessed via /Jec/ProductImages/ without authentication.
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<= 2018-09-14CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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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Identify JABA XPress installation and versionLocate the application installation directory and check version information in any version file, assembly metadata, or application footer/dashboard. Compare against the affected version date of 2018-09-14.Affected if The installed version is dated 2018-09-14 or earlier, or version information shows a date prior to September 2018 patches.
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Verify FileUploader.aspx existsCheck if the file FileUploader.aspx exists in the web application structure, typically under the /Jec/ or application root path.Affected if FileUploader.aspx is present in the application, indicating the vulnerable upload component exists.
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Confirm upload directory is web-accessibleVerify that the /Jec/ProductImages/ directory exists and is accessible via HTTP/HTTPS on the web server.Affected if The ProductImages directory is reachable over the web, meaning uploaded files can be served to users.
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Check for empty parameter upload bypassIf testing is authorized, attempt an authenticated upload to FileUploader.aspx with empty w and h parameters to confirm the validation bypass is possible.Affected if The upload endpoint accepts files when w and h parameters are submitted empty, confirming the vulnerability condition.
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Verify script execution is enabled on upload directoryExamine the web server configuration (IIS handler mappings, web.config, or directory permissions) for the /Jec/ProductImages/ directory to confirm ASPX or other script execution is permitted.Affected if Script execution permissions are enabled on the ProductImages directory, allowing uploaded ASPX files to execute when accessed.
A user is affected if the JABA XPress version is from before the September 2018 patch, FileUploader.aspx exists, the ProductImages directory is web-accessible, and script execution is allowed on that directory.
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 dataImplement strict server-side file type validation, block executable extensions in the upload directory, disable script execution permissions on /Jec/ProductImages/, and add authentication checks for file access.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-17058 — 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-2018-17058 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
- No spam, self-promotion, credentials, or personal data