CVE-2026-23544
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 codetipi Valenti valenti allows Object Injection.This issue affects Valenti: from n/a through <= 5.6.3.5.
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 confidenceA deserialization of untrusted data vulnerability in the Valenti WordPress theme (versions through 5.6.3.5) allows authenticated attackers to inject PHP objects via unsafe deserialization, potentially achieving remote code execution through PHP object injection techniques.
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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Locate Valenti theme installationCheck your WordPress installation for the Valenti theme directory, typically found at wp-content/themes/valenti/ or wp-content/themes/valenti-child/Affected if The Valenti theme directory exists in your WordPress themes folder
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Identify installed Valenti theme versionOpen the theme's style.css file (wp-content/themes/valenti/style.css) and locate the 'Version:' header field in the file comment block at the topAffected if The version number displayed is 5.6.3.5 or lower
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Search for unsafe deserialization callsExamine theme PHP files for instances of unserialize() function being called on request parameters, such as $_GET, $_POST, or $_REQUEST variables. Search for patterns like 'unserialize($_REQUEST[' or 'unserialize($_POST[' in the theme's PHP filesAffected if Code contains unserialize() calls that process untrusted user input without validation
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Verify deserialization endpoints are accessibleCheck if any theme PHP files expose deserialization functionality through frontend or admin AJAX actions. Review any files handling serialized data submissions from usersAffected if Theme contains accessible code paths that accept and deserialize user-supplied data without authentication guards (or authenticated users can access)
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Confirm user authentication status in your environmentReview your WordPress user roles and access controls. Determine if attacker could obtain at least subscriber-level account to exploit this authenticated deserialization flawAffected if Your WordPress site allows user registrations or has accounts beyond administrator, as the vulnerability requires authentication
You are affected if the Valenti theme version is 5.6.3.5 or lower AND your WordPress installation contains the vulnerable deserialization code accepting user input.
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 the Valenti theme to the latest patched version once available, and ensure proper input validation is implemented for any deserialization operations in custom code.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 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 $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-23544 — 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-2026-23544 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data