CVE-2026-3460

REST API TO MiniProgram <= 5.1.2 - Authenticated (Subscriber+) Insecure Direct Object Reference via 'userid' REST API Parameter

2026-03-20 15:10
Ronnachai Sretawat Na Ayutaya (Simonhaskelly)

Strategic Overview

Status
Unpatched
Affected Plugin
REST API TO MiniProgram
Affected Version
<= 5.1.2
CVSS
5.3Medium
Weakness type
CWE-20 · Improper Input Validation
CVE
CVE-2026-3460
View all REST API TO MiniProgram vulnerabilities

At a glance

CVE-2026-3460 is a medium-severity Improper Input Validation vulnerability in the REST API TO MiniProgram WordPress plugin, affecting versions <= 5.1.2. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed March 2026, reported by Ronnachai Sretawat Na Ayutaya (Simonhaskelly).

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-20: Improper Input Validation

REST API TO MiniProgram <= 5.1.2 carries this weakness at openid, and reaching it takes an account at Subscriber level or above. Improper input validation means the application accepts input without confirming it has the form, type or range the code downstream assumes.

The concrete impact depends on where the unvalidated value lands, which is why records in this class range from cosmetic bugs to full compromise. No fixed build of this plugin is recorded for REST API TO MiniProgram yet, so installs running <= 5.1.2 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-3460https://www.wordfence.com/threat-intel/vulnerabilities/id/7129d8cf-6b7d-4b7b-bd6a-85176247ab29https://nvd.nist.gov/vuln/detail/CVE-2026-3460

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C