Welcart E CommerceWordPress extension · Welcart
CVE-2016-4828
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 mishandles sessions, which allows remote attackers to obtain access by leveraging knowledge of the e-mail address associated with an account.
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 confidenceThe Collne WelCart e-Commerce WordPress plugin before version 1.8.3 has a session management flaw that allows remote attackers to gain unauthorized access to user accounts by leveraging knowledge of the email address associated with an account. The vulnerability stems from improper session handling that can be exploited without needing the account password.
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
Welcart E CommerceWordPress extension
< 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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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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Identify if WelCart e-Commerce plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'WelCart E-Commerce' or check the plugin directory /wp-content/plugins/ for welcart folderAffected if The WelCart plugin is present in the WordPress installation
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Check installed plugin versionIn WordPress admin, go to Plugins > Installed Plugins, find WelCart E-Commerce, and note the version number displayed below the plugin nameAffected if The version shown is less than 1.8.3 (for example, 1.8.2, 1.8.1, 1.7.x, etc.)
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Verify plugin files version constantIf admin access is limited, access the plugin file via FTP or file manager and inspect the main plugin file (usually welcart/welcart.php) for a version constant or header comment showing the version numberAffected if The version in the plugin file header is below 1.8.3
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Check if WordPress user accounts existIn WordPress admin, go to Users and review the list of registered users. The vulnerability specifically targets accounts where the email address is known to an attackerAffected if There are registered user accounts in the WordPress installation, particularly any accounts with known or publicly exposed email addresses
You are affected if the WelCart e-Commerce plugin is installed and its version is below 1.8.3, and there are user accounts in the system that could be targeted via the session management flaw.
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
Update the WelCart e-Commerce plugin to version 1.8.3 or later to obtain the session handling fix. If immediate updating is not possible, consider implementing additional authentication controls such as two-factor authentication and monitor access logs for suspicious activity using known email addresses.
Fix this in Welcart E Commerce
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-4828 — 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-2016-4828 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