CVE-2025-10755
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 was detected in Selleo Mentingo 2025.08.27. The impacted element is an unknown function of the component Content-Type Handler. The manipulation of the argument userAvatar results in unrestricted upload. The attack may be performed from remote. The exploit is now 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 · moderate confidenceUnrestricted file upload vulnerability in Selleo Mentingo's Content-Type Handler allows remote attackers to upload arbitrary files via manipulation of the userAvatar parameter, potentially leading to remote code execution or other malicious activities.
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
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/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.
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Identify Selleo Mentingo installationSearch the web server for files or directories associated with Selleo Mentingo (mentingo). Check web application directories, documented install paths, or source code repositories for this application.Affected if Selleo Mentingo software is present on the system
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Locate the Content-Type Handler componentSearch the application codebase or configuration for files handling Content-Type processing, particularly those associated with avatar or file upload functionality.Affected if The Content-Type Handler module exists in the application
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Verify userAvatar parameter exposureInspect the application's file upload endpoints and parameter handling code to confirm the userAvatar parameter accepts file content. Review form handling or API endpoints that process avatar uploads.Affected if The userAvatar parameter accepts raw file content without server-side validation
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Check file upload security controlsExamine the Content-Type Handler code or configuration to determine if file type validation uses an allowlist approach, checks file content (magic bytes), or restricts file extensions and Content-Type headers.Affected if No allowlist-based file type validation or content-based validation is implemented for uploads
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Inspect upload storage configurationReview the application configuration to verify where uploaded files are stored. Check if uploads are placed in the webroot or in directories configured as executable.Affected if Uploaded files are stored within the webroot or in executable directories
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Review for signs of exploitationSearch the upload directory for files with executable extensions (.php, .jsp, .asp, .exe, .sh) or suspicious file types that were not intentionally uploaded by administrators.Affected if Unexpected executable or malicious files exist in upload directories
The environment is affected if Selleo Mentingo is installed and the userAvatar parameter in the Content-Type Handler accepts unrestricted file uploads without allowlist validation, content inspection, or safe storage configuration.
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 file type validation (allowlist approach), sanitize uploaded filenames, store uploads outside the webroot or in a non-executable directory, and enforce proper access controls on uploaded files.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
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Free · runs locallyCheck whether your project pulls in CVE-2025-10755 — 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-2025-10755 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