CVE-2021-22719
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 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus Toolkit (V1.15.7 and prior) that could allow a remote code execution when a file is uploaded.
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 confidenceA path traversal vulnerability (CWE-22) in C-Bus Toolkit versions V1.15.7 and prior allows attackers to manipulate file upload paths to write files outside the intended restricted directory, potentially achieving remote 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<= 1.15.7CVSS 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 C-Bus Toolkit versionLocate the installed C-Bus Toolkit application and check its version number (typically found in the application properties, About section, or installation directory)Affected if The installed version is 1.15.7 or any prior version (1.15.7, 1.15.6, 1.15.5, etc.)
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Verify file upload feature is in useDetermine whether the C-Bus Toolkit instance has file upload or file import functionality enabled or accessible (check application settings, web interfaces, or configuration files related to file handling)Affected if File upload or file import capabilities are present and accessible in the environment
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Review file upload path configurationInspect the configuration files or settings that govern where uploaded files are stored, looking for any path validation or restriction mechanismsAffected if No strict path validation is configured, or the upload destination allows relative path traversal (../../ sequences)
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Check for unexpected files outside intended directoriesAudit the file system for any files written outside the expected upload directories that may indicate exploitation of path traversalAffected if Files exist in system directories or locations outside the designated upload folder
The environment is affected if C-Bus Toolkit version 1.15.7 or prior is installed AND file upload functionality is enabled, since the vulnerability allows manipulating upload paths to write files outside the intended directory.
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 dataUpdate C-Bus Toolkit to a version newer than V1.15.7. Additionally, implement strict input validation on file upload paths to prevent path traversal sequences (e.g., ../../).
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-22719 — 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-2021-22719 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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