CVE-2026-9185 Missing authorization in 6Storage Rentals
Unauthenticated attackers can read and modify arbitrary user profile data, including sensitive PII, by manipulating the userId parameter in AJAX requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9185?
CVE-2026-9185 is a high-severity missing authorization vulnerability in sixstorage 6Storage Rentals, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The 6Storage Rentals plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to and including 2.22.0 via the `userId` parameter of the `six_storage_get_user_info` and `six_storage_update_profile` AJAX actions. This is due to the `six_storage_getUserInfo()` and `six_storage_updateProfile()` functions being registered on `wp_ajax_nopriv_*` hooks and accepting a tenant identifier directly from `$_POST['userId']` without performing any ownership verification, session binding, or nonce validation to confirm the requester has a legitimate relationship to the supplied ID. This makes it possible for unauthenticated attackers to read and modify arbitrary tenants' profile data — including name, email address, phone number, physical address, and SSN — by supplying an enumerated `userId` value in a crafted request to either handler.
Weakness: CWE-639
Which versions are affected by CVE-2026-9185?
How do I fix CVE-2026-9185?
No fix has been published for CVE-2026-9185 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-9185 being exploited?
There is no known exploitation of CVE-2026-9185 in the wild and no public exploit code.
Sources
Also known as GHSA-q4cx-mm7j-89xj.