CVE-2016-4825
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 · uneditedThe Collne Welcart e-Commerce plugin before 1.8.3 for WordPress allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via crafted serialized data.
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 confidenceThe Collne Welcart e-Commerce plugin before version 1.8.3 for WordPress contains a PHP object injection vulnerability. Attackers can exploit unsafe deserialization of user-supplied data by injecting crafted serialized PHP objects, potentially leading to arbitrary code execution on the affected server.
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< 1.8.3CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
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 WordPress installation existsCheck for the presence of WordPress core files (wp-config.php, wp-includes directory) in the web root directory.Affected if WordPress is not installed, the plugin cannot be present.
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Check if Welcart e-Commerce plugin is installedLook for the plugin directory at wp-content/plugins/usc-e-shop/ or check via WordPress admin dashboard under Plugins > Installed Plugins.Affected if The plugin is not installed, this CVE does not apply.
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Determine installed plugin versionOpen the main plugin file (usc-e-shop/usc-e-shop.php) and locate the 'Version' header comment, or check the plugin details in WordPress admin dashboard.Affected if The installed version is less than 1.8.3 (e.g., 1.8.2, 1.8.1, 1.7.x, etc.).
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Confirm plugin is activeVerify the plugin status in WordPress admin dashboard under Plugins > Installed Plugins, or check the active_plugins option in wp_options database table.Affected if The plugin is active and processing requests, the unsafe deserialization vulnerability is reachable.
You are affected if Welcart e-Commerce plugin is installed and active with a version number lower than 1.8.3.
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 data1.8.3
Upgrade the Collne Welcart e-Commerce plugin to version 1.8.3 or later, which contains the fix for this vulnerability.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-4825 — 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-2016-4825 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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