CVE-2026-39467
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 · uneditedDeserialization of Untrusted Data vulnerability in MetaSlider Responsive Slider by MetaSlider allows Object Injection.This issue affects Responsive Slider by MetaSlider: from n/a through 3.106.0.
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 confidenceA deserialization of untrusted data vulnerability in MetaSlider Responsive Slider plugin allows object injection. The plugin unsafely deserializes user-controlled data, enabling attackers to inject PHP objects and potentially execute arbitrary code if exploitable magic methods exist in the application or associated plugins.
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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/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.
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Confirm MetaSlider plugin is installedNavigate to WordPress admin dashboard, go to Plugins > Installed Plugins, and search for 'MetaSlider Responsive Slider' or 'ml-slider'Affected if Plugin is present in the plugins list
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Identify the installed version numberIn the plugins list, locate the MetaSlider plugin entry and note the version number displayed beneath the plugin nameAffected if Version number cannot be determined or is earlier than the patched version
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Verify the plugin handles user inputCheck if the plugin settings or slider creation interface accepts and processes user-submitted content that could be deserializedAffected if Plugin is active and configured to accept user input in slider definitions or settings
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Inspect for deserialization functionsReview plugin code (if access is available) for usage of unserialize() on user-controlled data, typically in AJAX handlers or import/export featuresAffected if Code contains unserialize() calls processing external or user-supplied data
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Check plugin status and exposureExamine whether the plugin is active and publicly accessible versus restricted to admin-only accessAffected if Plugin is active and exposed to non-authenticated or low-privilege users
If MetaSlider Responsive Slider is installed and active with an older or unpatched version that accepts user input susceptible to unsafe deserialization, the environment is likely affected by CVE-2026-39467.
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 MetaSlider Responsive Slider to the latest version after the vendor releases a patch. As an immediate safeguard, disable or restrict the plugin's input handling until the fix is applied.
Upgrade to Responsive Slider by MetaSlider version 3.106.1 or later (latest stable release)
- Check your current MetaSlider Responsive Slider by MetaSlider version in WordPress plugin admin
- Navigate to Plugins > Installed Plugins and locate Responsive Slider by MetaSlider
- If your version is 3.106.0 or below, update to the latest available version via WordPress plugin updates
- Alternatively, download the latest version from the WordPress plugin repository or MetaSlider website
- After updating, verify the plugin version reflects the latest release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-39467 — 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-2026-39467 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