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Deserialization of Untrusted DataWeakness · CWE-502

CVE-2026-39481

HIGH · 7.2 CVSS v3.1 Published 2026-06-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
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
Author PHP Object Injection in Modula Image Gallery <= 2.14.18 versions.

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

PHP Object Injection vulnerability in Modula Image Gallery plugin for WordPress allows authenticated users with Author-level permissions to inject malicious PHP objects through unsafe deserialization. This can potentially lead to arbitrary code execution depending on available PHP classes in the application environment.

MitigationUpdate Modula Image Gallery plugin to a version newer than 2.14.18. If no patched version is available, disable the plugin until a fix is released.

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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/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 Modula Image Gallery plugin is installed
    Navigate to WordPress admin > Plugins, or inspect /wp-content/plugins/ directory for 'modula' folder
    Affected if plugin is present in the WordPress installation
  2. Determine installed plugin version
    Check the plugin header in modula.php file, or view plugin details in WordPress admin Plugins page under 'Version' field
    Affected if version number is 2.14.18 or lower
  3. Confirm plugin is active
    Check Plugins page in WordPress admin; 'Active' status must be checked. Alternatively, query wp_options table for option_name='active_plugins'
    Affected if plugin is active and version is <= 2.14.18
  4. Identify users with Author-level access
    In WordPress admin, go to Users > All Users and filter by role 'Author', or query wp_users and wp_usermeta tables where meta_key='wp_capabilities' and meta_value contains 'author'
    Affected if any user account with Author role exists and plugin version is <= 2.14.18

Your environment is affected if Modula Image Gallery plugin is installed with version 2.14.18 or lower and is currently active, regardless of whether Author-level users currently exist in the system.

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 Modula Image Gallery plugin to a version newer than 2.14.18. If no patched version is available, disable the plugin until a fix is released.

Recommended fix Moderate confidence

Modula Image Gallery 2.14.19 or latest available version

  1. Log in to the WordPress admin dashboard
  2. Navigate to Plugins > Installed Plugins
  3. Locate the Modula Image Gallery plugin
  4. Check the current version number to confirm it is 2.14.18 or lower
  5. Click 'Update Now' on the plugin card if an update is available, or manually download the latest version from the WordPress plugin repository
  6. After updating, verify the new version number in the plugins list

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing4.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,360
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,176.

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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-2026-39481 in production — separate from our analysis above.

No notes yet

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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
  • No spam, self-promotion, credentials, or personal data