Quick answers
- Is CVE-2026-16574 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16574 being exploited in the wild.
- How severe is CVE-2026-16574?
- Medium severity, with a CVSS score of 5.4, published 8 August 2026.
- Which products and versions are affected?
- Dokan Multivendor Marketplace Solution before 5.0.11.
- Is there a fix for CVE-2026-16574?
- A patch was published on 2026-08-08: Fixed in version 5.0.11 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-16574 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-16574?
- Check whether you run Dokan Multivendor Marketplace Solution at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is an Insecure Direct Object Reference (IDOR) in the REST API endpoint `/wp-json/dokan/v2/orders/{order_id}/downloads` (and the v3 variant). When a vendor makes a POST request to add downloadable products to one of their own orders, the backend fails to verify that the product being added actually belongs to the requesting vendor; it only checks that the order belongs to them. An authenticated vendor can therefore craft a request to bind any product in the marketplace—including competitors' paid files—to their own order and customer account. No additional user interaction or special privilege is required; HTTP Basic auth with application credentials or a logged-in vendor session suffices. The fix was released in version 5.0.11.
Affected products
- Dokan Multivendor Marketplace Solution before 5.0.11
Timeline
- 2026-08-03: disclosed
- 2026-08-08: patched: Fixed in version 5.0.11