CVE-2025-53303
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 ThemeMove ThemeMove Core thememove-core allows Object Injection.This issue affects ThemeMove Core: from n/a through <= 1.4.2.
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 PHP Object Injection vulnerability exists in ThemeMove Core theme due to unsafe deserialization (likely unserialize()) of untrusted data. This allows attackers to inject malicious PHP objects, potentially achieving remote code execution if suitable 'pop chain' classes are available in the WordPress environment.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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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Identify if ThemeMove Core theme is installedCheck for the theme directory at wp-content/themes/thememove-core or wp-content/themes/thememove (also check parent theme folders). Use command: ls -la wp-content/themes/ | grep -i thememoveAffected if ThemeMove Core theme files exist in the WordPress themes directory
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Determine the installed ThemeMove Core versionLocate style.css in the theme folder and read the 'Version:' header, or check theme.json for the version field. Example: cat wp-content/themes/thememove-core/style.css | grep -i versionAffected if Version is unknown, unlisted, or falls within a vulnerable range compared to the patched version
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Locate unsafe deserialization calls in the themeSearch the theme files for unserialize() function usage. Use: grep -rn "unserialize" wp-content/themes/thememove-core/ (or thememove parent folder)Affected if Any unserialize() call is found that processes data without prior sanitization
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Determine if the deserialization input is user-controlledTrace the data flow from the unserialize() call backward to identify if it originates from $_GET, $_POST, $_COOKIE, or other HTTP request parameters. Examine the calling function and its input sourcesAffected if The unserialize() call processes data derived from HTTP request parameters without validation
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Check for potential pop chain classes in the environmentSearch for known magic methods (__wakeup, __destruct, __toString) in plugin/theme code that could form a gadget chain. Use: grep -rn "__wakeup\|__destruct\|__toString" wp-content/plugins/ wp-content/themes/Affected if Pop chain capable classes exist in the WordPress environment that could enable RCE when combined with the injection point
You are affected if ThemeMove Core theme is installed and its version contains unsafe unserialize() calls that process untrusted user input, especially if pop chain classes are present in the environment.
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 ThemeMove Core to the latest patched version if available; otherwise, replace unsafe deserialization calls (unserialize()) with safe alternatives like json_decode() and implement proper input validation.
- Consultation4.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-53303 — 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-2025-53303 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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