CVE-2025-54731
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 · uneditedImproper Control of Generation of Code ('Code Injection') vulnerability in emarket-design YouTube Showcase youtube-showcase allows Object Injection.This issue affects YouTube Showcase: from n/a through <= 3.5.1.
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 confidenceThe emarket-design YouTube Showcase plugin for WordPress (version <= 3.5.1) contains a PHP Object Injection vulnerability due to improper control of code generation. The vulnerability allows unauthenticated attackers to manipulate PHP object deserialization (unserialize()) through user-controlled input, potentially leading to remote code execution if suitable gadget chains exist in the application or associated plugins.
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.
-
Verify YouTube Showcase plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'YouTube Showcase' by emarket-design, or check the /wp-content/plugins/ directory for a folder containing 'youtube-showcase' in the plugins directory.Affected if The plugin is not installed on the WordPress site.
-
Check installed plugin versionIn WordPress admin, view the plugin details page for YouTube Showcase and note the version number displayed, or open the main plugin PHP file (usually plugin-name.php) and look for the 'Version' header in the plugin comment block.Affected if The version number is 3.5.1 or lower.
-
Identify vulnerable unserialize() callsExamine the plugin source code for any unserialize() function calls that process input from GET, POST, or cookie parameters without proper sanitization. Search the plugin files for 'unserialize' patterns, particularly where user-supplied data is passed as the unserialize argument.Affected if The plugin code contains unserialize() calls that accept raw user input without validation.
-
Check if vulnerable input parameters are accessibleTest whether the identified parameters (from step 3) can be reached without authentication. Attempt to submit crafted requests to the affected endpoints using the identified parameter names.Affected if The vulnerable parameters are accessible to unauthenticated (anonymous) users.
A site is affected if it has YouTube Showcase plugin version 3.5.1 or lower installed with accessible unserialize() calls processing unauthenticated user input.
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 YouTube Showcase version 3.5.2 or later which should contain the fix; alternatively, if upgrading is not possible, disable the plugin until a patch is available. Implementing proper input validation and avoiding unsafe use of unserialize() functions is critical.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 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 $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-54731 — 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-2025-54731 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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