CVE-2025-48396
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 · uneditedArbitrary code execution is possible due to improper validation of the file upload functionality in Eaton BLSS. This security issue has been fixed in the latest script patch latest version of of Eaton BLSS (7.3.0.SCP004).
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 is an improper input validation issue in the file upload functionality of Eaton BLSS. Attackers can upload malicious files that get processed, allowing arbitrary code execution on the affected system. This is a critical file upload validation bypass in a web-facing component.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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 Eaton BLSS installation and versionLocate the Eaton BLSS application and determine its installed version. Check installation directories, About pages, or system information panels for the version number. Common paths may include program files, configuration files, or the product's web interface.Affected if The system is Eaton BLSS with a version earlier than 7.3.0.SCP004 or if the version cannot be determined
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Verify file upload functionality is enabledCheck whether the file upload feature in BLSS is currently enabled or accessible. Review application configuration files, feature flags, or admin settings that control upload capabilities.Affected if File upload functionality is enabled and accessible to users or unauthenticated attackers
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Inspect upload directory permissionsExamine the directories configured for file uploads in BLSS. Check file system permissions on these directories to determine if they allow write access and if executable file types can be placed there.Affected if Upload directories have write permissions and permit executable file types (such as .asp, .php, .exe, .jsp, .sh) to be stored
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Review upload file validation settingsCheck BLSS configuration for file type validation, allowlist controls, or content inspection settings on uploaded files. Look for security configurations related to file handling.Affected if No strict allowlist validation is configured or content-type/file extension checks are missing or weak
The environment is affected if it runs Eaton BLSS with version lower than 7.3.0.SCP004 and has the file upload functionality accessible without strict validation controls in place.
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 dataApply the vendor patch (version 7.3.0.SP004) to fix the file upload validation. If immediate patching is not possible, disable or restrict file upload functionality and implement additional validation controls (file type whitelist, content inspection, renaming uploaded files).
- 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-2025-48396 — 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-2025-48396 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