CVE-2025-54053
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 Adrian Tobey Groundhogg groundhogg allows Object Injection.This issue affects Groundhogg: from n/a through <= 4.2.2.
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 Groundhogg WordPress plugin allows attackers to inject PHP objects via the unserialize() function on untrusted input, potentially leading to remote code execution through object injection 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:H/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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Check installed Groundhogg plugin versionIn WordPress admin, go to Plugins > Installed Plugins > Groundhogg and view the version number. Alternatively, use 'wp plugin list' via WP-CLI or check the main plugin file header in wp-content/plugins/groundhogg/groundhogg.phpAffected if The version is 4.2.2 or lower
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Identify if unserialize() is used on external inputSearch the Groundhogg plugin directory for 'unserialize' calls, particularly on $_POST, $_GET, $_REQUEST, or any user-submitted data. Common locations include form handlers, API endpoints, or AJAX controllers.Affected if Code contains unserialize() applied to any input derived from user request parameters
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Check for exposed input vectorsReview publicly accessible endpoints (REST API routes, form submission handlers, AJAX actions) in the plugin that process incoming data. Look for functions that accept serialized payloads from requests.Affected if Any public endpoint accepts and deserializes data without sanitization
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Verify object injection riskExamine if the plugin loads classes that could be chained for object injection attacks (e.g., __wakeup, __destruct magic methods in any included class files).Affected if The plugin contains classes with exploitable magic methods that could be triggered via deserialized objects
The environment is affected if Groundhogg plugin version is 4.2.2 or lower AND the plugin code contains unserialize() calls processing user-controlled input from HTTP requests.
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 Groundhogg to the latest version beyond 4.2.2 which contains the patched fix. Review code for any use of unserialize() on user-controlled input and replace with safer alternatives like json_decode().
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
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Free · runs locallyCheck whether your project pulls in CVE-2025-54053 — 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-2025-54053 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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