CVE-2023-26098
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 · uneditedAn issue was discovered in the Open Document feature in Telindus Apsal 3.14.2022.235 b. An attacker may upload a crafted file to execute arbitrary code.
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 file upload vulnerability exists in the Open Document feature of Telindus Apsal 3.14.2022.235 b. Attackers can upload crafted malicious files that get stored in a way that allows arbitrary code execution, likely due to insufficient validation of file types, content, or storage location.
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= 3.14.2022.235_bCVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/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 installed version of Telindus ApsalLocate the application version information in the software itself, about page, or system configuration files. Common locations include installation directories, registry entries, or the application's main interface.Affected if The installed version is 3.14.2022.235_b exactly, as this is the only confirmed vulnerable version.
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Determine if Open Document feature is enabledAccess the Telindus Apsal administrative interface and navigate to the feature configuration. Look for settings related to document upload, Open Document, or file management features.Affected if The Open Document feature is currently enabled and accessible to users.
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Inspect upload directory configurationCheck the web server and application configuration for upload path settings. Look for where uploaded files are stored and whether the directory is web-accessible.Affected if Uploads are stored within the web root or in a directory that allows script execution.
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Review recent file uploads for suspicious contentExamine the upload directory for files with double extensions (e.g., .php.jpg), executable extensions (.php, .exe, .sh), or unusually named files. Check file creation timestamps and ownership.Affected if Any uploaded files contain executable code, web shells, or have suspicious filenames indicative of exploitation.
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Check web server access logs for upload activityReview HTTP logs for POST requests to upload endpoints, particularly looking for unusual file types being uploaded to Open Document functionality.Affected if Logs show uploads of file types that should be blocked (scripts, executables) or requests from unexpected sources.
You are affected only if you have Telindus Apsal version 3.14.2022.235_b running with the Open Document feature enabled and either find evidence of suspicious uploads or have uploads stored in an executable 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 dataImplement strict allowlist-based file type validation, sanitize filenames, store uploads outside the web root, and disable script execution on upload directories.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-26098 — 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-2023-26098 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