CVE-2023-34798
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 upload vulnerability in eoffice before v9.5 allows attackers to execute arbitrary code via uploading a crafted file.
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 confidenceThe vulnerability allows unauthenticated attackers to upload arbitrary files to the eoffice application, bypassing proper validation checks. Because uploaded files can be placed in web-accessible directories and executed, attackers can achieve remote code execution on the server.
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< 9.5CVSS 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.
-
Confirm Weaver E Office is installedCheck installed software inventory, look for 'Weaver E Office' or 'e-cology' in program directories or running servicesAffected if Weaver E Office is present on the system
-
Determine installed E Office versionLocate version information in installation directory, about page, or admin panel. Common locations: help/about page, version.txt in install directory, or check registry/database for version recordAffected if Version is below 9.5 (e.g., 9.0, 9.1, 9.2, 9.3, 9.4, or any 9.x version prior to 9.5)
-
Verify web interface is accessibleCheck if E Office web portal is exposed on network. Test access to common endpoints like /ecology/ or the main login pageAffected if The web interface is reachable from network (the flaw is unauthenticated)
-
Identify if file upload module is enabledCheck if upload-related features are available in the web interface (document upload, attachment upload, or avatar upload features)Affected if File upload functionality exists and is accessible without authentication
The environment is affected if Weaver E Office is running with a version below 9.5 and the web interface with upload functionality is accessible.
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 · scoped9.5
Implement strict allowlist-based file type validation, verify file content/magic bytes (not just extensions), store uploads outside webroot or rename files to prevent execution, and disable script execution in upload directories.
eOffice v9.5
- Upgrade eOffice to version 9.5 or later to resolve the arbitrary file upload vulnerability
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 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 $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-34798 — 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-2023-34798 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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