CVE-2026-6262
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 · uneditedThe Betheme theme for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 28.4. This is due to the upload_icons() function workflow using a user-controlled upload path (`mfn-icon-upload`) in a filesystem move operation without constraining it to the uploads directory. This makes it possible for authenticated attackers, with contributor-level access and above, to move/delete arbitrary local files via path traversal.
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 confidenceThe Betheme WordPress theme versions up to 28.4 contain a path traversal vulnerability in the upload_icons() function. Authenticated users with contributor-level access can manipulate the mfn-icon-upload parameter to perform arbitrary file deletions via filesystem move operations outside the intended uploads directory.
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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 Betheme theme versionIn WordPress admin, go to Appearance > Themes and locate Betheme to view its version number, or check the style.css file in wp-content/themes/betheme/ for the 'Version:' headerAffected if The version is 28.4 or earlier (any version up to and including 28.4)
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Locate the upload_icons functionSearch the theme files for the function upload_icons() - typically found in functions.php or included template files within the betheme directoryAffected if The function exists and contains logic that processes the mfn-icon-upload parameter without proper path sanitization
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Verify contributor-level user accountsIn WordPress admin, go to Users and review roles. Contributor role allows authenticated access to theme features.Affected if Any user with contributor role or higher exists in the WordPress installation
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Check access to vulnerable parameterReview theme AJAX handlers or form submissions that accept the mfn-icon-upload parameter, typically in admin-ajax.php or theme-specific AJAX endpointsAffected if The parameter is accepted and processed by the upload_icons function without validating the destination path remains within the uploads directory
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Monitor for suspicious file deletion activityReview server access logs and WordPress audit logs for unusual delete or move operations, particularly requests to admin-ajax.php with mfn-icon-upload or similar icon upload actionsAffected if Evidence exists of file deletion operations targeting paths outside wp-content/uploads/
You are affected if the Betheme theme version is 28.4 or earlier AND contributor-level users can access the upload_icons function via the mfn-icon-upload parameter without path validation.
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 · scopedUpdate the Betheme theme to version 28.5 or later where the vulnerability is patched. Until then, limit contributor-level access and monitor for suspicious file deletion attempts.
Latest version above 28.4 (check support.muffingroup.com for exact release)
- 1. Log in to the WordPress admin dashboard
- 2. Navigate to Appearance > Themes
- 3. Locate the Betheme theme
- 4. Check the current version number displayed
- 5. If the version is 28.4 or below, click 'Update Now' to install the latest version
- 6. Alternatively, download the latest Betheme theme from the official source (support.muffingroup.com) and upload it via Appearance > Themes > Add New > Upload Theme
- 7. After updating, verify the new version number in the themes section
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
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Free · runs locallyCheck whether your project pulls in CVE-2026-6262 — 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-2026-6262 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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- 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
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