CVE-2024-6943
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 · uneditedA vulnerability has been found in ZhongBangKeJi CRMEB up to 5.4.0 and classified as critical. Affected by this vulnerability is the function downloadImage of the file app/services/product/product/CopyTaobaoServices.php. The manipulation leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-272065 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceA PHP deserialization vulnerability exists in the downloadImage function of CopyTaobaoServices.php in ZhongBangKeJi CRMEB up to version 5.4.0. The function processes external input (likely image URLs or data) and passes it to PHP's unserialize() without proper validation, allowing remote attackers to inject malicious serialized objects and achieve code execution.
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<= 5.4.0CVSS 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
- 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 CRMEB versionLocate the version file or check the version constant in the application. Look for version.php in the application root or config directory, or check the admin panel system information page.Affected if Installed version is 5.4.0 or lower
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Find CopyTaobaoServices.php fileSearch the web root directory for the file CopyTaobaoServices.php, typically located in the application directory under a services or controller subfolder.Affected if The file exists in the application installation
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Verify copy/import feature is accessibleCheck if the product copy feature is enabled in the admin panel or accessible via URL. This feature processes the external input that reaches the vulnerable function.Affected if The copy feature is enabled or accessible to users
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Inspect vulnerable downloadImage functionOpen CopyTaobaoServices.php and locate the downloadImage function. Examine whether it contains unserialize() calls that process external input without proper validation.Affected if The function contains unserialize() handling user-supplied data
Environment is affected if running CRMEB version 5.4.0 or lower with the CopyTaobaoServices.php file present and the copy feature enabled or accessible.
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 dataReplace unsafe unserialize() calls with secure alternatives like json_decode() and implement strict input validation on all data passed to deserialization functions. If the product copy feature is not actively used, consider disabling or removing the CopyTaobaoServices component until a patch is available.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-6943 — 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-2024-6943 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
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- Version or environment caveats, and links to real fixes
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