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CVE-2026-105872: MKL Product Configurator for WooCommerce PHP object injection vulnerability

high 7.2 published 2026-10-09 · updated 2026-10-11

Fixed in MKL Product Configurator for WooCommerce 1.7.6

MKL Product Configurator for WooCommerce 1.7.5 and older is affected by this PHP object injection issue. Sites on 1.7.6 or newer are not affected; the latest release is 2.0.1.

Affected versions
1.7.5 and older
Fixed in
1.7.6
Latest version
2.0.1
Severity
High · CVSS 7.2
Active installs
2,000+
Type
PHP object injection

What an attacker needs

CVSS vector (score by Patchstack): CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What to do now

  1. Update MKL Product Configurator for WooCommerce to 1.7.6 or newer (the latest is 2.0.1): Dashboard → Updates, or Plugins → “update now”.
  2. If you cannot update right away, deactivate it until you can.
  3. Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
  4. Not sure which version you run? Check your version against every known MKL Product Configurator for WooCommerce issue. With WP-CLI: wp plugin get product-configurator-for-woocommerce --field=version.
  5. If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.

The advisory

Deserialization of Untrusted Data vulnerability in mklacroix Product Configurator for WooCommerce product-configurator-for-woocommerce allows Object Injection.This issue affects Product Configurator for WooCommerce: from n/a through 1.7.5.

Description from the CVE record, published by Patchstack (the CVE Numbering Authority), via the NVD entry for CVE-2026-105872.

References

Related

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Where this data comes from

First hour checklist

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