CVE-2026-16281: Classified Listing < 6.1.1 - Subscriber+ Arbitrary Attachment Deletion and Listing Image Tampering via IDOR

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WPScan). Independent of NVD's CPE analysis and usually ahead of it.

• Unknown Classified Listing

  • 5.3.0 and later · before 6.1.1affected · semver

Other highest-scoring records for the same primary product.

• CVE-2026-106646Classified Listing < 6.1.1 - Subscriber+ Unattached Media Deletion and Modification via Gallery AJAX Handlers
  23Monitor
• CVE-2026-14183Classified Listing < 5.3.9 - Subscriber+ Payment Receipt Disclosure via IDOR
  17Monitor
• CVE-2026-16276Classified Listing < 5.4.4 - Contributor+ Store Revenue Total Disclosure via rtcl_revenue_order_search
  10Monitor

Published before and after this one in the same product

• ← EarlierCVE-2026-16274Aug 3, 2026 · Classified Listing < 5.4.4 - Contributor+ Unpublished Post Content Disclosure via rtcl_block_css_get_posts
  10Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The endpoint fetches the record by the ID sent in the request, but never checks whether the record belongs to the requesting user.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const invoice = await Invoice.findById(req.params.id);2res.json(invoice);

1const invoice = await Invoice.findOne({2  id: req.params.id,3  ownerId: req.user.id,4});5if (!invoice) return res.sendStatus(404);6res.json(invoice);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.