CVE-2018-5763
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 OXID eShop Enterprise Edition before 5.3.7 and 6.x before 6.0.1. By entering specially crafted URLs, an attacker is able to bring the shop server to a standstill and hence, it stops working. This is only valid if OXID High Performance Option is activated and Varnish is used.
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 denial-of-service vulnerability in OXID eShop Enterprise Edition. When the High Performance Option is enabled and Varnish is used as a reverse proxy, specially crafted URLs can be used to bring the shop server to a standstill, causing it to stop working.
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< 5.3.7= 6.0.0CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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 installed OXID eShop versionLocate the version information in the OXID eShop installation (typically found in the admin panel under System Information, or in a version/config file within the installation directory)Affected if The installed version is lower than 5.3.7 or exactly equals 6.0.0
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Verify if High Performance Option is enabledCheck the OXID eShop configuration settings for the High Performance Option (usually in the shop configuration file or admin settings related to performance/caching)Affected if The High Performance Option is turned ON or enabled in the configuration
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Confirm if Varnish is used as a reverse proxyInspect the web server or OXID configuration to determine if Varnish is configured as a reverse proxy in front of the OXID eShop (check web server config, proxy settings, or OXID cache/performance settings)Affected if Varnish is actively configured and serving as a reverse proxy for the shop
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Review URL handling behaviorMonitor shop server response times and resource usage when processing various URL requests, particularly looking for unusual patterns that could indicate specially crafted URL exploitationAffected if The shop server exhibits significantly degraded performance or becomes unresponsive with certain URL patterns while the above conditions are met
You are affected if your OXID eShop version is below 5.3.7 or exactly 6.0.0, AND the High Performance Option is enabled, AND Varnish is configured as a reverse proxy.
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 data5.3.7
Update OXID eShop to version 5.3.7 or 6.0.1 or later to patch this vulnerability. As a temporary mitigation, consider disabling the High Performance Option or implementing rate limiting on Varnish if immediate patching is not feasible.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-5763 — 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-2018-5763 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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- Version or environment caveats, and links to real fixes
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