CVE-2026-12081
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 Database for Contact Form 7, WPforms, Elementor forms WordPress plugin before 1.5.2 does not restrict the PHP classes allowed when unserializing an attacker-supplied form-field value, allowing unauthenticated users to inject arbitrary PHP objects that are instantiated when an administrator views the stored entry. This is an incomplete fix of CVE-2025-7384 and CVE-2026-2599, whose deserialization paths were hardened while the entry-editor file-field path was missed.
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 plugin uses unsafe unserialize() on attacker-supplied form-field values without restricting PHP classes, allowing unauthenticated injection of arbitrary PHP objects. When an administrator views the stored entry in the entry-editor file-field path, the deserialized objects are instantiated, potentially leading to POP chain exploitation. This is an incomplete fix where prior CVEs addressed other deserialization paths but missed this specific entry-editor file-field endpoint.
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
- High
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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 the affected plugin or componentLocate the plugin/theme directory in your web root (typically wp-content/plugins/) and read the main PHP file's header to find the Name and Version fields, or run 'grep -r "Version:" your-plugin-dir/'Affected if The installed version is lower than 1.5.2 or cannot be determined
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Verify the entry-editor file-field functionality existsCheck if a file named entry-editor.php, entry-editor-file-field.php, or similar exists in the plugin's admin directory, and confirm the path includes 'file-field' in the filenameAffected if The entry-editor file-field file exists and contains an unserialize() call on user-supplied data
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Confirm unauthenticated form submissions are acceptedReview the form-handling code that processes submissions and check if it validates user authentication before calling unserialize() on submitted field valuesAffected if Form submissions process unserialize() on values without requiring authentication
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Check the specific unserialize() call for class restrictionsOpen the identified entry-editor file-field file and locate the unserialize() call - inspect whether it uses a second parameter (e.g., ['allowed_classes' => false]) or a whitelist of allowed classesAffected if The unserialize() call has no second parameter or allows all classes (no class restriction)
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Confirm admin access to stored entries is possibleVerify that administrators can access the entry viewer/editor interface where stored form entries are displayed, which triggers the deserializationAffected if Admin users can view stored entries through the entry-editor file-field path
You are affected if your installed version is below 1.5.2 and the entry-editor file-field file contains an unrestricted unserialize() call on user-submitted data that gets processed when admins view stored entries.
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 to version 1.5.2 or later which properly restricts allowed PHP classes in the unserialize() call for the entry-editor file-field path.
1.5.2
- Log in to WordPress admin dashboard
- Navigate to Plugins > Installed Plugins
- Find 'The Database for Contact Form 7, WPforms, Elementor forms' plugin
- Click 'Update now' if an update is available, or manually update to version 1.5.2
- Verify the plugin version shows 1.5.2 or higher after updating
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,160.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-12081 — 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-2026-12081 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
- No spam, self-promotion, credentials, or personal data