dbcve.org
Deserialization of Untrusted DataWeakness · CWE-502

CVE-2026-22354

HIGH · 8.8 CVSS v3.1 Published 2026-02-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

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 · unedited
Deserialization of Untrusted Data vulnerability in Dotstore Woocommerce Category Banner Management banner-management-for-woocommerce allows Object Injection.This issue affects Woocommerce Category Banner Management: from n/a through <= 2.5.1.

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 confidence

This is a PHP Object Injection vulnerability in the Dotstore Woocommerce Category Banner Management plugin stemming from unsafe deserialization (likely use of unserialize() on user-controlled data). Attackers can exploit this to instantiate arbitrary PHP objects, potentially leading to remote code execution if suitable POP (Property-Oriented Programming) chains exist in the application or connected libraries.

MitigationUpdate to a patched version if available; otherwise disable the plugin until a fix is released. The vulnerability requires removing unsafe unserialize() calls and replacing with json_decode() or similar safe deserialization methods.

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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify the plugin is installed
    Check your WordPress plugins directory or wp-content/plugins folder for a folder named 'woocommerce-category-banner-management' or similar Dotstore banner plugin.
    Affected if The plugin is present in the WordPress installation
  2. Identify the installed version
    Check the plugin's main PHP file (usually the primary plugin file) for the Version header comment, or look in the plugin's readme.txt file for the version number.
    Affected if The version cannot be determined or is below any patched version that may have been released after this CVE
  3. Locate unsafe unserialize calls
    Search the plugin's PHP files for 'unserialize' function calls, particularly examining files in includes/ or classes/ directories. Use grep or similar: grep -r "unserialize" path/to/plugin/
    Affected if Code contains unserialize() calls that process data without prior sanitization
  4. Confirm user input reaches deserialization
    Examine the unserialize calls found and trace back whether $_POST, $_GET, $_REQUEST, or other user-supplied data is passed directly to unserialize() without validation.
    Affected if User-controlled data from request parameters flows directly into unserialize() without being filtered through json_decode or other safe methods
  5. Check for POP chain gadgets
    Review installed themes and other plugins for classes with magic methods (__destruct, __wakeup, __toString) that could be chained with the injectable objects. Look for potential RCE vectors in the broader WordPress environment.
    Affected if Classes with exploitable magic methods exist that could be triggered via the object injection

Your environment is affected if the Dotstore Woocommerce Category Banner Management plugin is installed, contains unsafe unserialize() calls on user input, and your WordPress environment has exploitable POP chain gadgets available for remote code execution.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to a patched version if available; otherwise disable the plugin until a fix is released. The vulnerability requires removing unsafe unserialize() calls and replacing with json_decode() or similar safe deserialization methods.

Recommended fix Moderate confidence

Latest version available from WordPress repository or Dotstore (version > 2.5.1)

  1. 1. Log in to the WordPress admin dashboard
  2. 2. Navigate to Plugins > Installed Plugins
  3. 3. Locate the 'Woocommerce Category Banner Management' (banner-management-for-woocommerce) plugin
  4. 4. Check the current installed version (should be <= 2.5.1)
  5. 5. Update the plugin to the latest available version from the WordPress repository or Dotstore

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-22354 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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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