CVE-2026-3460 Missing authorization in REST API TO MiniProgram
Authenticated attackers can modify arbitrary users' store metadata via the REST API due to missing validation between openid and userid parameters.
- 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-2026-3460?
CVE-2026-3460 is a medium-severity missing authorization vulnerability in xjb REST API TO MiniProgram, published on 21 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The REST API TO MiniProgram plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2. This is due to the permission callback (update_user_wechatshop_info_permissions_check) only validating that the supplied 'openid' parameter corresponds to an existing WordPress user, while the callback function (update_user_wechatshop_info) uses a separate, attacker-controlled 'userid' parameter to determine which user's metadata gets modified, with no verification that the 'openid' and 'userid' belong to the same user. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify arbitrary users' store-related metadata (storeinfo, storeappid, storename) via the 'userid' REST API parameter.
Weakness: CWE-20
Which versions are affected by CVE-2026-3460?
How do I fix CVE-2026-3460?
No fix has been published for CVE-2026-3460 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-2026-3460 being exploited?
There is no known exploitation of CVE-2026-3460 in the wild and no public exploit code.
Sources
Also known as GHSA-xxxv-phx4-9pvx.