CVE-2025-39499
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 BoldThemes Medicare medicare allows Object Injection.This issue affects Medicare: from n/a through <= 2.1.0.
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 vulnerability in the BoldThemes Medicare WordPress theme allows attackers to inject malicious PHP objects via untrusted data. This object injection can potentially lead to remote code execution through PHP magic methods like __wakeup, __destruct, or custom gadget chains. The CVSS 9.8 score indicates trivial exploitability with catastrophic impact.
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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Confirm BoldThemes Medicare theme is installedNavigate to Appearance > Themes in WordPress admin panel, or inspect wp-content/themes/ directory for 'medicare' or 'boldthemes-medicare' folder. Note the version displayed or read style.css for 'Version:' header.Affected if The BoldThemes Medicare theme is active or installed on the WordPress site.
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Locate unserialize() calls in theme codeSearch theme files for 'unserialize' using grep or file search tools: grep -r "unserialize" wp-content/themes/medicare/ or use a code search utility. Examine files containing this function call.Affected if Any unserialize() call exists in the theme code that processes data from external sources.
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Identify input sources feeding unserializeFor each unserialize() call found, trace back the variable passed to it. Check if it originates from $_GET, $_POST, $_COOKIE, $_REQUEST, or HTTP headers without sanitization.Affected if Untrusted user input (GET/POST parameters, cookies, or headers) flows directly into an unserialize() call.
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Check accessibility of vulnerable endpointsReview theme files for AJAX handlers (add_action('wp_ajax_*')) or form handlers that accept and process serialized data. Test if these endpoints are reachable without authentication.Affected if Endpoints processing unserialize() are accessible to unauthenticated users.
Your environment is affected if the BoldThemes Medicare theme is installed and contains unserialize() calls that accept untrusted input from accessible endpoints.
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 dataReplace all instances of unserialize() with safe JSON encoding/decoding (json_encode/json_decode), implement proper input validation and whitelist checks if deserialization is required, and update to a patched version once available.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-39499 — 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-2025-39499 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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- Version or environment caveats, and links to real fixes
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