CVE-2023-25703
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 · uneditedMissing Authorization vulnerability in WP OnlineSupport, Essential Plugin Meta slider and carousel with lightbox allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Meta slider and carousel with lightbox: from n/a through 1.6.2.
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 confidenceMissing authorization vulnerability in the Meta Slider and Carousel with Lightbox WordPress plugin allows unauthenticated or improperly authorized users to access functionality that should be restricted. The vulnerability stems from incorrectly configured access control security levels, likely missing capability checks or nonce verification on certain AJAX endpoints or admin functions.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 the installed plugin versionIn WordPress admin, go to Plugins > Installed Plugins > Meta Slider and Carousel with Lightbox and note the version number. Compare this to the version where the vulnerability was fixed.Affected if The installed version is older than the patched version containing the authorization fixes.
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Locate plugin AJAX handlersInspect the plugin directory (wp-content/plugins/ml-slider) for AJAX action registrations using add_action('wp_ajax_*) or add_action('wp_ajax_nopriv_*) and identify the callback functions.Affected if AJAX endpoints are registered with 'nopriv' capability or lack proper capability checks in their handlers.
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Check AJAX callback authorizationExamine each AJAX callback function for presence of current_user_can() or similar capability checks before executing sensitive operations.Affected if AJAX handlers lack capability verification or nonce validation checks.
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Review admin function permissionsCheck admin menu pages and callback functions in the plugin for proper admin permission verification using current_user_can() or role checks.Affected if Admin functions execute without verifying user capabilities.
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Test unauthorized accessIf possible, attempt to access suspected AJAX endpoints or admin actions without proper authentication/authorization to confirm the vulnerability exists.Affected if Requests succeed without proper authorization credentials.
The environment is affected if the Meta Slider and Carousel with Lightbox plugin is installed with a version lacking proper capability checks and nonce validation on AJAX endpoints or admin functions.
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 proper authorization checks (current_user_can, capability verification) and nonce validation on all sensitive endpoints and admin functions within the plugin.
- Consultation2.0 h
- Implementation4.0 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 $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-25703 — 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-2023-25703 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