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Discount CouponApplication · Ec Cube

CVE-2016-4837

CRITICAL · 9.8 CVSS v3.1 Published 2016-08-01
Fix available
A fix is available. Upgrade to after 1.5 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
SQL injection vulnerability in the Seed Coupon plugin before 1.6 for EC-CUBE allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

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 confidence

SQL injection vulnerability in the Seed Coupon plugin for EC-CUBE e-commerce platform. The flaw allows remote unauthenticated attackers to inject arbitrary SQL commands via unspecified input vectors, potentially enabling data exfiltration, authentication bypass, or complete database compromise.

MitigationUpgrade Seed Coupon plugin to version 1.6 or later. If upgrading is not immediately feasible, disable the plugin or implement Web Application Firewall (WAF) rules to block SQL injection attempts.

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
Discount CouponApplication
Affected:<= 1.5

CVSS 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
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify if EC-CUBE platform is installed
    Locate EC-CUBE installation directories or check web server document roots for EC-CUBE application files
    Affected if EC-CUBE e-commerce platform is present in the environment
  2. Check if Seed Coupon plugin is installed
    Search for plugin files named 'seed_coupon', 'discount_coupon', or similar coupon-related plugin directories within the EC-CUBE installation
    Affected if Seed Coupon or Discount Coupon plugin files exist in the EC-CUBE installation
  3. Determine installed plugin version
    Examine plugin metadata files such as plugin.xml, config.php, or version definition files within the coupon plugin directory
    Affected if The plugin version is 1.5 or lower based on version information found in plugin files
  4. Verify plugin is active or enabled
    Check EC-CUBE database plugin table or plugin configuration files to confirm the coupon plugin status is 'enabled' or 'active'
    Affected if The plugin is enabled and processing requests in a live environment
  5. Inspect web server and application logs for SQL injection patterns
    Review access logs and EC-CUBE application logs for suspicious parameters containing SQL keywords (SELECT, UNION, INSERT, DROP) or special characters (' or 1=1) in coupon-related endpoints
    Affected if Log entries show malicious SQL injection attempts targeting coupon functionality
  6. Check database for indicators of compromise
    Query the database for unexpected admin accounts, modified user records, or suspicious data in tables that handle coupon codes or user authentication
    Affected if Unrecognized admin accounts exist or coupon-related tables contain unexpected data modifications

A user is affected if EC-CUBE with Seed Coupon plugin version 1.5 or lower is installed and the plugin is currently enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 1.5
Interim mitigation

Upgrade Seed Coupon plugin to version 1.6 or later. If upgrading is not immediately feasible, disable the plugin or implement Web Application Firewall (WAF) rules to block SQL injection attempts.

Recommended fix High confidence

Seed Coupon plugin version 1.6 for EC-CUBE

  1. 1. Access the EC-CUBE administration panel
  2. 2. Navigate to the plugin management section
  3. 3. Locate the 'Seed Coupon' or 'Discount Coupon' plugin
  4. 4. Check the current installed version (if <= 1.5, it is vulnerable)
  5. 5. Upgrade the plugin to version 1.6 or later
  6. 6. Verify the upgrade was successful by confirming the new version number

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Discount Coupon Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-4837 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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