LivechatWordPress extension
CVE-2023-49821
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in LiveChat LiveChat – WP live chat plugin for WordPress.This issue affects LiveChat – WP live chat plugin for WordPress: from n/a through 4.5.15.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in the LiveChat WordPress plugin versions up to 4.5.15 allows attackers to trick authenticated users into performing unintended actions (such as modifying chat settings or agent configurations) by crafting malicious requests that the user's browser submits automatically.
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
LivechatWordPress extension
<= 4.5.15CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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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Check LiveChat plugin versionNavigate to WordPress admin dashboard > Plugins > Installed Plugins > LiveChat look for the version number displayed below the plugin name. Alternatively, use WP CLI: wp plugin list --name=livechatAffected if The installed version is 4.5.15 or lower
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Verify plugin is activeConfirm the LiveChat plugin is installed and activated in WordPress admin under Plugins > Installed Plugins. A CSRF attack requires an authenticated session.Affected if The plugin is active and running on the site
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Confirm plugin handles admin actionsCheck if the LiveChat plugin has any settings pages or admin functionality under WordPress admin menu (usually under Settings or a dedicated LiveChat menu). CSRF targets state-changing actions.Affected if The plugin exposes settings pages or configuration options that can be modified by administrators
You are affected if the LiveChat plugin version is 4.5.15 or lower and the plugin is active with admin-accessible settings that could be modified via forged requests.
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 LiveChat plugin to the latest version; ensure WordPress nonces are implemented on all state-changing actions and verify SameSite cookie attributes.
4.5.16
- 1. Update the LiveChat – WP live chat plugin for WordPress to version 4.5.16 or later to resolve the CSRF vulnerability.
- 2. After updating, verify the plugin is functioning correctly by testing chat functionality in the WordPress admin and on the frontend.
- 3. Consider implementing additional CSRF protections at the WordPress level, such as using a security plugin that enforces nonces for admin actions.
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Livechat
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing2.0 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 $3,744.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-49821 — 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-2023-49821 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