CVE-2025-41712
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 unauthenticated remote attacker who tricks a user to upload a manipulated HTML file can get access to sensitive information on the device. This is a result of incorrect permission assignment for the web server.
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 stems from incorrect permission assignment on the web server, which allows an unauthenticated remote attacker to trick a user into uploading a manipulated HTML file. Once uploaded, the attacker can exploit the misconfigured permissions to access sensitive information stored on the device.
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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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 web server software and versionRun command to check installed web server (e.g., httpd -v, nginx -v, or check package manager) and document the exact version numberAffected if The installed version falls within any known affected version range for this CVE
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Determine if HTML file upload feature is enabledReview web server configuration files for any file upload handlers, forms, or APIs that accept HTML file uploads. Check for upload modules or endpoints that permit .html or .htm file extensionsAffected if HTML file upload functionality is present and accessible to users
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Verify web server directory permissionsInspect the web server document root and upload directories for overly permissive access controls (e.g., world-readable or world-writable permissions). Use 'ls -la' to check actual permission bits on relevant directoriesAffected if Directories accessible via the web server have permissive permissions (such as 777 or world-readable/writable) that allow unauthorized access to sensitive files
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Check for sensitive file accessibilityAttempt to access common sensitive files (configuration files, credentials, user data) through the web server using a browser or curl command, or review access logs for unauthorized access attempts to such filesAffected if Sensitive files stored on the server are accessible via HTTP/HTTPS requests due to permission misconfiguration
A user is affected if their web server has HTML file upload capability enabled AND has permissive file/directory permissions that allow unauthorized access to sensitive information.
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 dataFix the web server's permission configuration to ensure proper access controls and prevent unauthorized access to sensitive files; validate and restrict HTML file uploads to prevent malicious content execution.
- Consultation4.0 h
- Implementation6.0 h
- Testing3.0 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 $4,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-41712 — 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-2025-41712 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