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CVE-2024-8123: The Ultimate WordPress Toolkit – WP Extended <= 3.0.8 - Insecure Direct Object Reference

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-04 · updated 2026-06-17
• Weakness: CWE-639

Description

The The Ultimate WordPress Toolkit – WP Extended plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.0.8 via the duplicate_post function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to duplicate posts written by other authors including admins. This includes the ability to duplicate password-protected posts, which reveals their contents.

Affected products

• wpextended The Ultimate WordPress Toolkit – WP Extended: before 3.0.9 — fixed in 3.0.9

How to fix

Upgrade to a fixed version: wpextended The Ultimate WordPress Toolkit – WP Extended 3.0.9. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/wpextended/trunk/includes/modules/core_extensions/wpext_duplicator/wpext_duplicator.php#L48
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3145430%40wpextended%2Ftrunk&old=3134345%40wpextended%2Ftrunk&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/b1e421fb-4839-4e2d-911f-e2fa8c756744?source=cve

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