CVE-2025-39550
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 Shahjahan Jewel FluentCommunity fluent-community allows Object Injection.This issue affects FluentCommunity: from n/a through <= 1.2.15.
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 · moderate confidenceA deserialization of untrusted data vulnerability in the FluentCommunity plugin allows attackers to inject malicious PHP objects (Object Injection) by supplying crafted serialized data. This can potentially lead to remote code execution if vulnerable magic methods exist in the application or installed libraries.
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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/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 FluentCommunity plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'FluentCommunity' in the list. Note whether it is active or inactive.Affected if The plugin is installed and active (inactive plugins may still pose risk if files are accessible)
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Identify the installed FluentCommunity versionIn WordPress admin > Plugins > Installed Plugins, click on the FluentCommunity plugin to view its details, or check the plugin header in /wp-content/plugins/fluentcommunity/plugin.php for 'Version: x.x.x'Affected if The version shown is lower than 1.2.16 (e.g., 1.2.15, 1.2.14, etc.)
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Compare version against the patched releaseCompare your installed version number to 1.2.16. Any version below 1.2.16 contains the deserialization vulnerability.Affected if Your installed version is below 1.2.16 (e.g., 1.2.15 or earlier)
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Locate the vulnerable unserialize call in code (optional confirmation)If you have file access, search the plugin directory for unserialize() calls: grep -r "unserialize" /wp-content/plugins/fluentcommunity/ and examine if any receive input from $_GET, $_POST, $_REQUEST, or database fields.Affected if Any unserialize() call in the plugin processes data from untrusted sources without prior sanitization
You are affected if FluentCommunity plugin is installed with a version lower than 1.2.16.
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 dataUpgrade to FluentCommunity version 1.2.16 or later. If no patched version is available, audit the codebase for unserialize() calls on user-supplied data and replace with safe JSON parsing.
- 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-2025-39550 — 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-2025-39550 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
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