CVE-2026-30276
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 arbitrary file overwrite vulnerability in DeftPDF Document Translator v54.0 allows attackers to overwrite critical internal files via the file import process, leading to arbitrary code execution or information exposure.
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 confidenceArbitrary file overwrite vulnerability in DeftPDF Document Translator v54.0 allows attackers to overwrite critical internal files through the file import process. The lack of proper path validation and access controls during file import enables attackers to write to arbitrary locations on the filesystem, potentially leading to arbitrary code execution or information exposure.
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= 54.0CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Verify DeftPDF Document Translator installationCheck for the DeftPDF application on the system - look for the executable (DeftPDF.exe), installed program files, or the application running as a service. On Windows, check Program Files or the user's AppData folder for DeftPDF folders.Affected if DeftPDF Document Translator version 54.0 is installed and running on the system
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Confirm installed version is 54.0Right-click the DeftPDF.exe file, select Properties, and check the File Version on the Details tab. Alternatively, open the DeftPDF application and look in Help > About or the application settings for the version number.Affected if The installed version is exactly 54.0 (no other versions are affected)
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Check if file import functionality is enabledWithin the DeftPDF application, verify whether the Document Translator feature and file import options are available. Look for menu options like File > Import, Translate Document, or similar features that accept external files.Affected if The Document Translator file import feature is present and accessible in the application
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Identify network exposure of the serviceCheck if DeftPDF is running as a network service or exposing a web server. Use netstat -an to see listening ports, or check if the application has started a web server on common ports (e.g., 80, 443, 8080). Look for any HTTP/HTTPS endpoints related to document translation.Affected if The DeftPDF Document Translator service is listening on network ports and accessible to other systems
You are affected if DeftPDF Document Translator version 54.0 is installed and its file import/translation feature is network-accessible to untrusted users.
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, path sanitization, and allowlist-based file type checking on the file import functionality. Restrict file write operations to designated safe directories and validate that uploaded filenames do not contain path traversal sequences.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-30276 — 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-2026-30276 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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