CVE-2023-33365
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 path traversal vulnerability exists in Suprema BioStar 2 before 2.9.1, which allows unauthenticated attackers to fetch arbitrary files from the server's web server.
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 path traversal vulnerability in Suprema BioStar 2 before version 2.9.1 allows unauthenticated remote attackers to access arbitrary files on the server by manipulating file paths in HTTP requests, potentially exposing sensitive system configuration files, credentials, or other confidential data.
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< 2.9.1CVSS 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 BioStar 2 installationLocate the BioStar 2 application on the system. Check common installation directories such as C:\Program Files\BioStar 2\ on Windows or /opt/biostar2/ on Linux. Verify the BioStar 2 service or web server process is running.Affected if BioStar 2 is installed and the service is running on the system
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Identify the installed versionAccess the BioStar 2 web interface and navigate to the About or System Info section, typically found in the admin panel. Alternatively, check version files within the installation directory or the Windows Registry under HKLM\Software\BioStar 2.Affected if The installed version is displayed as anything below 2.9.1
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Verify web server is accessibleConfirm the BioStar 2 web interface is reachable by accessing the server URL on the configured port (commonly 8080 or 8443). Test from the local system and verify if the HTTP service accepts requests.Affected if The BioStar 2 HTTP service is running and responding to requests
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Confirm version is within affected rangeCompare the identified BioStar 2 version number against the affected range: versions strictly less than 2.9.1 are vulnerable. If the version cannot be determined, treat the system as potentially affected.Affected if The installed version is less than 2.9.1 (for example, 2.9.0, 2.8.x, or earlier)
If BioStar 2 is installed with a version below 2.9.1 and the web interface is accessible, the environment is affected by this path traversal vulnerability.
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.
dbcve · scoped2.9.1
Upgrade BioStar 2 to version 2.9.1 or later to patch the path traversal vulnerability; if immediate patching is not possible, restrict web server access to trusted IPs and monitor for suspicious traversal patterns in logs.
BioStar 2 version 2.9.1
- Upgrade BioStar 2 to version 2.9.1 or later to remediate the path traversal vulnerability
- Verify the upgrade was successful by confirming the running version
- Test that the application functions normally after the upgrade
- Review access controls and network segmentation as an additional defensive measure
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-33365 — 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-2023-33365 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