CVE-2023-33517
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 · uneditedcarRental 1.0 is vulnerable to Incorrect Access Control (Arbitrary File Read on the Back-end System).
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 confidencecarRental 1.0 contains an Incorrect Access Control vulnerability that allows authenticated or unauthenticated users to read arbitrary files from the server's filesystem. This appears to be a path traversal or local file inclusion (LFI) vulnerability in the application's backend file handling functionality.
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= 1.0CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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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Confirm carRental versionIdentify the installed version of the carRental application (Carrental Project). This may be visible in the application header, about page, or by querying the application's version endpoint or configuration files.Affected if The installed version is carRental 1.0 (Carrental Project Carrental version 1.0)
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Locate file handling functionalityIdentify endpoints or features in the carRental application that handle file operations, particularly file read/download operations. Look for parameters that accept file paths or filenames in HTTP requests.Affected if The application exposes any file read, download, or display functionality that accepts user-controlled file path input
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Verify endpoint accessibilityDetermine whether the identified file handling endpoints require authentication. Test access to these endpoints both with and without valid authentication credentials.Affected if File handling endpoints are accessible to unauthenticated users or accessible without proper authorization checks
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Test for path traversalSubmit requests to file handling endpoints with path traversal sequences such as ../../../etc/passwd, ../../../windows/win.ini, or similar patterns to attempt accessing files outside the intended directory.Affected if The application returns the contents of files outside the intended web root or application directory, confirming path traversal is possible
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Inspect access control configurationReview the application's backend configuration and code (if accessible) to verify that file path parameters are validated against an allowlist or properly restricted to permitted directories only.Affected if No strict input validation or allowlist enforcement is found on file path parameters
The environment is affected if carRental version 1.0 is running and exposes file handling functionality without proper path traversal protections, allowing unauthorized file access.
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 dataImplement strict input validation on file path parameters, use allowlists for permitted files/directories, and enforce proper authentication and authorization checks on all file access endpoints.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-33517 — 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-2023-33517 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
- No weaponised exploit code, or anything meant to cause harm
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