Classified Listing <= 6.1.0 - Authenticated (Subscriber+) Insecure Direct Object Reference

4.3
Authorization Bypass Through User-Controlled Key
CVE CVE-2026-16281
CVSS 4.3 (Medium)
Publicly Published September 2, 2026
Last Updated September 10, 2026
Researcher Usama Arshad - N/A

Description

The Classified Listing plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.1.0. This is due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.

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Vulnerability Details for Classified Listing – AI-Powered Classified ads & Business Directory

Software Type Plugin
Software Slug classified-listing (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.1.1, or a newer patched version
Affected Version
  • <= 6.1.0
Patched Version
  • 6.1.1

Recent vulnerabilities in Classified Listing – AI-Powered Classified ads & Business Directory

# Title CVE ID CVSS Researchers Date
1 Classified Listing – AI-Powered Classified ads & Business Directory < 6.1.1 - Missing Authorization CVE-2026-106646 4.3 Naoki Kawahigashi October 14, 2026
2 Classified Listing – AI-Powered Classified ads & Business Directory <= 6.1.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-94665 6.4 Zein October 4, 2026
3 Classified Listing – AI-Powered Classified ads & Business Directory <= 6.1.3 - Unauthenticated Stored Cross-Site Scripting CVE-2026-96351 7.2 Manopakorn Kooharueangrong (manop55555) September 28, 2026
4 Classified Listing – AI-Powered Classified ads & Business Directory <= 6.1.3 - Missing Authorization CVE-2026-84217 4.3 Muhammad Bilal September 2, 2026
5 Classified Listing <= 5.4.3 - Missing Authorization CVE-2026-16276 4.3 Huseyin Mertoglu July 23, 2026
6 Classified Listing <= 5.4.3 - Missing Authorization CVE-2026-16274 4.3 Huseyin Mertoglu July 23, 2026
7 Classified Listing – AI-Powered Classified ads & Business Directory <= 5.4.2 - Missing Authorization CVE-2026-57355 4.3 Septio Noerdiansyah July 1, 2026
8 Classified Listing <= 5.3.8 - Insecure Direct Object Reference to Authenticated (Subscriber+) Receipt Disclosure CVE-2026-14183 4.3 PO-WEI TING (Dinlon5566) , Open Information Security Inc. June 30, 2026
9 Classified Listing – AI-Powered Classified ads & Business Directory <= 5.4.2 - Unauthenticated Stored Cross-Site Scripting CVE-2026-57344 7.2 daroo June 29, 2026
10 Classified Listing <= 5.4.2 - Missing Authorization to Authenticated (Subscriber+) Feature Modification via Multiple AJAX Handlers ('listingId'/'id' Parameters) CVE-2026-10779 4.3 Ben Tamam (Ben Tamam) June 18, 2026

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