CVE-2023-23649
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 MainWP MainWP Links Manager Extension.This issue affects MainWP Links Manager Extension: from n/a through 2.1.
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 confidenceThis is a deserialization vulnerability in the MainWP Links Manager Extension where untrusted data is being deserialized, potentially allowing remote code execution. The vulnerability affects versions up to 2.1 and rates high (8.1) due to the potential impact of insecure deserialization attacks.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/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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Verify MainWP Links Manager Extension is installedLog in to WordPress admin dashboard and navigate to Plugins > Installed Plugins. Look for 'MainWP Links Manager Extension' in the list of installed plugins.Affected if The plugin is not found in the installed plugins list
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Check installed version of the extensionIn the WordPress plugins list, find the MainWP Links Manager Extension and note the version number displayed beneath the plugin name. Compare this against the affected version range (up to 2.1).Affected if The installed version is 2.1 or lower
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Confirm the extension is activeIn WordPress admin, go to Plugins > Installed Plugins and verify whether MainWP Links Manager Extension is activated (the plugin will show as 'Active' under the plugin name).Affected if The extension is active and running a vulnerable version (2.1 or below)
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Inspect for deserialization usage in extension files (optional deeper check)If you have file system access, locate the MainWP Links Manager Extension directory (typically in wp-content/plugins/mainwp-links-manager-extension) and search for PHP unserialize() function calls within the extension's PHP files.Affected if The extension contains unserialize() calls handling untrusted data in a vulnerable version
If the MainWP Links Manager Extension is installed, active, and running version 2.1 or lower, the environment is affected by this insecure deserialization vulnerability.
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 dataUpdate to the patched version of the MainWP Links Manager Extension when available. Until then, restrict access to the affected component and validate all input before deserialization.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-23649 — 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-2023-23649 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