CVE-2026-22454
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 ThemeREX Solaris solaris allows Object Injection.This issue affects Solaris: from n/a through <= 2.5.
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 · moderate confidenceThe ThemeREX Solaris theme for WordPress contains a deserialization vulnerability where untrusted data is being deserialized, allowing an attacker to inject PHP objects. With a CVSS 9.8 rating, this is trivially exploitable and could lead to remote code execution if vulnerable classes are available in the application context.
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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Identify the installed ThemeREX Solaris versionLocate the theme's style.css file in wp-content/themes/trx_solaris/ and look for the 'Version:' header in the file comment block, or check theme.json if presentAffected if The version listed is 2.5 or lower
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Verify PHP deserialization functions exist in theme codeSearch the theme directory for calls to unserialize() function, typically in PHP files within the theme folderAffected if The unserialize() function is found and processes input from $_GET, $_POST, $_REQUEST, or similar user-controlled sources
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Identify data sources passed to deserializationExamine any unserialize() calls found and trace whether the input originates from HTTP request parameters, cookies, or other user-supplied dataAffected if Untrusted user input from HTTP requests is being passed directly to unserialize() without validation
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Check for exploitable PHP classes in the WordPress environmentReview installed plugins and the theme for classes containing magic methods like __wakeup, __destruct, or __toString that could be chained for RCEAffected if Such gadget classes exist in the application context and could be leveraged via the deserialization vulnerability
You are affected if the ThemeREX Solaris theme version is 2.5 or lower AND the theme deserializes untrusted user input without validation.
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 to a patched version of ThemeREX Solaris (beyond 2.5), or if no patch is available, implement strict input validation and avoid deserializing untrusted data. Conduct a thorough code audit to identify and remediate all deserialization points.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-22454 — 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-2026-22454 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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