AvadaWordPress extension · Theme Fusion
CVE-2023-39307
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 · uneditedUnrestricted Upload of File with Dangerous Type vulnerability in ThemeFusion Avada.This issue affects Avada: from n/a through 7.11.1.
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 ThemeFusion Avada WordPress theme allowing attackers to upload dangerous file types (likely PHP files) which could lead to remote code execution on the affected WordPress site.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
AvadaWordPress extension
< 7.11.2CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.
-
Check installed Avada theme versionNavigate to Appearance > Themes in WordPress admin dashboard. Locate the Avada theme and note the displayed version number. Alternatively, check the style.css file in wp-content/themes/fusion/assets/css/ or the version defined in the Avada theme header.Affected if The installed version is lower than 7.11.2 (for example, 7.11.1, 7.10.x, 7.9, etc.)
-
Verify if Avada file upload forms are activeCheck Avada Theme Options > Fusion Builder Options > Fusion Form Options. Look for any enabled forms that include file upload fields, particularly contact forms or fusion forms that accept file attachments.Affected if Any file upload forms are enabled and publicly accessible on the site
-
Inspect web server upload directoryExamine the wp-content/uploads/ directory (or custom upload directory if configured) for recently created files. Check file permissions and look for unexpected file extensions such as .php, .phtml, .phar, or .php5.Affected if Executable PHP files or other suspicious file types are present in upload directories and were not intentionally uploaded by administrators
-
Review access logs for upload endpoint activitySearch web server access logs (Apache, Nginx) for POST requests to fusion-form-builder upload handlers or common file upload paths. Look for requests uploading files with extensions other than images, documents, or expected media types.Affected if Evidence of upload requests with dangerous file extensions targeting the Avada fusion form handler exists in logs
The environment is affected if the Avada theme version is below 7.11.2 AND file upload forms are enabled and accessible to untrusted users, or if suspicious executable files are already present in upload directories.
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 · scoped7.11.2
Update Avada theme to version 7.11.2 or later once released; until then, restrict file upload functionality to trusted users only and implement server-side file type validation/monitoring at the web application firewall level.
Avada 7.11.2
- 1. Create a complete backup of the WordPress site including database and files
- 2. Update the Avada theme to version 7.11.2 or later through WordPress admin (Appearance > Themes) or via FTP
- 3. Verify the update was successful by checking the theme version in Appearance > Themes
- 4. Test file upload functionality to confirm the vulnerability is remediated
- 5. Monitor for any unexpected behavior after the update
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Avada
Scoped from the published advisory
- Consultation2.0 h
- Implementation2.0 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 $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-39307 — 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-2023-39307 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