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Deserialization of Untrusted DataWeakness · CWE-502

CVE-2026-49085

CRITICAL · 9.8 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 →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
Unauthenticated PHP Object Injection in WP Insightly for Contact Form 7, WPForms, Elementor, Formidable and Ninja Forms <= 1.1.4 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

Unauthenticated PHP Object Injection vulnerability in WP Insightly WordPress plugin versions 1.1.4 and below allows remote attackers to inject malicious PHP objects through unserialized user input, potentially leading to remote code execution.

MitigationUpdate WP Insightly plugin to version 1.1.5 or later to patch the deserialization vulnerability, or remove the plugin if an update is unavailable.

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 checks

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

  1. Locate WP Insightly plugin version
    Access the WordPress plugin directory (wp-content/plugins/insightly) and inspect the main plugin file (usually insightly.php) or readme.txt to find the version number in the plugin header comment
    Affected if The version displayed is 1.1.4 or below (e.g., 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0, or any earlier version)
  2. Verify plugin is active
    Log into WordPress admin panel, go to Plugins > Installed Plugins, and check if WP Insightly shows as Active; alternatively, query the wp_options table for the option_name 'active_plugins' and check if insightly is listed
    Affected if The plugin is installed and active, making its code executable and the deserialization handler accessible to unauthenticated requests
  3. Confirm version is within affected range
    Compare the installed version found in step 1 against the known affected range (1.1.4 and below)
    Affected if The installed version is 1.1.4 or any version lower than 1.1.5, indicating the vulnerable deserialization code has not been patched
  4. Check for deserialization input vectors
    If you have access to the plugin source code, search for calls to unserialize() function and verify they process user-supplied input (such as $_GET, $_POST, $_COOKIE, or $_REQUEST parameters) without prior validation
    Affected if The plugin code contains unserialize() calls that process unauthenticated user input, confirming the exploitation condition exists in this installation

A system is affected if the WP Insightly plugin is active and running version 1.1.4 or below, since these versions contain the vulnerable unserialize() call that processes unauthenticated input.

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 WP Insightly plugin to version 1.1.5 or later to patch the deserialization vulnerability, or remove the plugin if an update is unavailable.

Recommended fix Moderate confidence
  1. Navigate to the WordPress admin dashboard
  2. Go to Plugins > Installed Plugins
  3. Locate the 'WP Insightly' plugin
  4. If the installed version is 1.1.4 or below, click 'Update Now' to install the latest available version
  5. Alternatively, download the latest version from the official WordPress plugin repository or the vendor's website
  6. After updating, verify the new version number reflects the patch

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,720
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.

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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-2026-49085 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