CVE-2025-54686
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 scriptsbundle Exertio exertio allows Object Injection.This issue affects Exertio: from n/a through <= 1.3.2.
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 · high confidenceA PHP Object Injection vulnerability exists in the Exertio WordPress theme (version <= 1.3.2) due to unsafe deserialization of untrusted data. Attackers can potentially exploit this to execute arbitrary code, inject malicious objects, or conduct further attacks depending on available PHP gadgets in the application.
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 Exertio theme is installedNavigate to Appearance > Themes in WordPress admin dashboard, or inspect the wp-content/themes directory for the exertio folderAffected if Exertio theme is not present in the WordPress installation
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Identify Exertio theme versionCheck the style.css file in wp-content/themes/exertio/ for the Version header, or look in the theme's main PHP file for version constantAffected if Installed version is lower than 1.3.3
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Locate scriptsbundle componentSearch for scriptsbundle.php file in the theme directory, typically found under inc/scripts/ or similar paths within the exertio theme folderAffected if scriptsbundle.php file exists and is present in the theme
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Check for unsafe unserialize usageOpen the scriptsbundle.php file and search for unserialize() function calls within the codeAffected if unserialize() is called without prior validation or sanitization of the input data
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Verify scriptsbundle is accessibleAttempt to access the scriptsbundle endpoint via HTTP request (e.g., /wp-content/themes/exertio/inc/scripts/scriptsbundle.php) to confirm it respondsAffected if The scriptsbundle endpoint is accessible and processes request parameters
Environment is affected if Exertio theme version is below 1.3.3 and the scriptsbundle component with unsafe unserialize() is present and accessible.
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 dataUpdate Exertio to the latest patched version. If an update is unavailable, review and sanitize all user-supplied data before deserialization, or disable PHP unserialize() calls on user input.
- Consultation3.0 h
- Implementation2.0 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 $2,832.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-54686 — 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-2025-54686 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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