CVE-2025-1646
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 vulnerability, which was classified as critical, has been found in Lumsoft ERP 8. Affected by this issue is some unknown functionality of the file /Api/TinyMce/UploadAjaxAPI.ashx of the component ASPX File Handler. The manipulation of the argument file leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceLumsoft ERP 8 contains an unrestricted file upload vulnerability in the /Api/TinyMce/UploadAjaxAPI.ashx handler. The 'file' argument is not properly validated, allowing attackers to upload arbitrary file types including executable content. With a public exploit available and no vendor patch, this vulnerability poses immediate risk for remote code execution if malicious files are uploaded and accessed.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 Lumsoft ERP 8 installationLocate the Lumsoft ERP installation directory and identify the installed version by checking version files, assembly info, or the application's about/landing pageAffected if Lumsoft ERP version 8 is confirmed to be installed in the environment
-
Verify vulnerable endpoint existsAttempt to access the URL path /Api/TinyMce/UploadAjaxAPI.ashx on the web server (e.g., via curl or browser request) and check for HTTP 200 response indicating the handler existsAffected if The endpoint returns a valid response (not 404), meaning the upload handler is present and accessible
-
Check if file upload functionality is enabledSend a test POST request to /Api/TinyMce/UploadAjaxAPI.ashx with a benign file in the 'file' parameter and observe if the upload succeedsAffected if The upload request completes without authentication errors or validation rejections, indicating unrestricted upload capability
-
Inspect upload directory configurationExamine the web server configuration (web.config, IIS settings) to determine the upload path used by TinyMce and whether it resides within the web rootAffected if The upload directory is located under the web root and script execution permissions are not disabled, allowing uploaded files to be executed directly
A user is affected if Lumsoft ERP 8 is running with the /Api/TinyMce/UploadAjaxAPI.ashx endpoint exposed and uploads are permitted to a web-accessible directory without script execution restrictions.
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 dataImmediately restrict or disable the vulnerable /Api/TinyMce/UploadAjaxAPI.ashx endpoint via web server configuration or WAF rules. If the endpoint is required, implement strict allowlist-based file type validation, store uploads outside the web root, and disable script execution permissions on the upload directory.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-1646 — 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-2025-1646 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