CVE-2024-3639
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 Elementor Addons by Livemesh plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Posts Grid widget in all versions up to, and including, 8.3.7 due to insufficient input sanitization and output escaping on user supplied attributes like 'grid_skin'. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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 Elementor Addons by Livemesh WordPress plugin versions up to 8.3.7 contain a stored XSS vulnerability in the Posts Grid widget. The 'grid_skin' attribute and similar user-supplied attributes are not properly sanitized before storage or escaped upon output, allowing authenticated attackers with contributor-level permissions to inject malicious JavaScript that executes whenever users access affected pages.
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<= 8.3.7CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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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Verify the installed plugin versionNavigate to WordPress Admin > Plugins > Installed Plugins > Livemesh Elementor Addons and check the version number displayedAffected if The version shown is 8.3.7 or lower
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Confirm the Posts Grid widget is in useSearch your pages and posts for instances of the Posts Grid widget added via Elementor - check page content or use a site search for 'posts-grid' or the widget nameAffected if The Posts Grid widget is present on any published page or post
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Review contributor-level user accountsGo to WordPress Admin > Users and review the user list for any accounts with Contributor roleAffected if There are one or more contributor-level users who could have authored malicious content
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Inspect recent posts authored by contributorsReview posts/pages created by contributor users, particularly those using the Posts Grid widget, for suspicious script tags or event handlers in attribute fieldsAffected if Unexpected script tags, javascript: URLs, or on* event handlers are found in grid attribute fields
You are affected if the Livemesh Elementor Addons plugin version is 8.3.7 or lower AND the Posts Grid widget is in use on your site, as the unsanitized grid_skin attribute allows stored XSS injection by contributor-level users.
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 plugin to version 8.3.8 or later. If immediate update is not possible, restrict contributor-level user permissions or disable the Posts Grid widget until the patch can be applied.
8.3.8 or later
- 1. Back up the WordPress site before making any changes
- 2. Navigate to Plugins > Installed Plugins in the WordPress admin dashboard
- 3. Locate the 'Addons For Elementor' (also known as 'Elementor Addons by Livemesh') plugin
- 4. Click 'Update Now' if an update is available, or manually download version 8.3.8 or higher from wordpress.org
- 5. After updating, verify the new version number in the plugins list
- 6. Test the Posts Grid widget functionality to ensure the update did not break existing features
- 7. Clear any caching plugins or server-side caches
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-3639 — 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-2024-3639 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