Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-53243

HIGH · 8.1 CVSS v3.1 Published 2025-08-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
90/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Deserialization of Untrusted Data vulnerability in emarket-design Employee Directory – Staff Listing & Team Directory Plugin for WordPress employee-directory allows Object Injection.This issue affects Employee Directory – Staff Listing & Team Directory Plugin for WordPress: from n/a through <= 4.5.5.

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 confidence

This is a PHP Object Injection vulnerability in the emarket-design Employee Directory plugin for WordPress. The plugin deserializes untrusted data (likely via PHP's unsafe unserialize() function), allowing attackers to inject malicious PHP objects that can potentially execute arbitrary code, read sensitive data, or perform other attacks depending on available 'magic methods' in the plugin or WordPress environment.

MitigationUpdate to a patched version of the plugin when available. If no patch exists, locate and remove all unserialize() calls on user-supplied input, replacing with safe serialization methods like json_encode/json_decode.

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify if emarket-design Employee Directory plugin is installed
    In WordPress admin, go to Plugins > Installed Plugins. Look for 'Employee Directory' by 'emarket-design' and note the installed version number.
    Affected if Plugin is installed and version is within affected range or unpatched
  2. Locate PHP files containing unserialize() calls
    Access the plugin directory via FTP or file manager (wp-content/plugins/employee-directory or similar). Search all .php files for the string 'unserialize('.
    Affected if Any unserialize() call is found in plugin PHP files
  3. Determine if unserialize() processes user input
    Examine each unserialize() call found. Check if it receives data from $_GET, $_POST, $_REQUEST, cookies, or database fields that could contain user-supplied values.
    Affected if unserialize() receives data from any user-controlled source without validation
  4. Check if the plugin processes external/serialized data
    Review AJAX handlers, form processing code, and any endpoints that accept and process data. Look for functions that accept and unserialize input from requests.
    Affected if Plugin accepts and unserialize()s data from external sources without sanitization

You are affected if the emarket-design Employee Directory plugin is installed and contains unserialize() calls that process untrusted/user-supplied input.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to a patched version of the plugin when available. If no patch exists, locate and remove all unserialize() calls on user-supplied input, replacing with safe serialization methods like json_encode/json_decode.

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,280
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-53243 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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