miniOrange OTP Login, Verification and SMS Notifications <= 5.4.9 - Unauthenticated Privilege Escalation
Strategic Overview
- Status
- Patched in 5.5.0
- Affected Plugin
- miniOrange OTP Login, Verification and SMS Notifications
- Affected Version
<= 5.4.9- CVSS
- 9.8Critical
- Weakness type
- CWE-266 · Incorrect Privilege Assignment
- CVE
CVE-2026-42731
At a glance
CVE-2026-42731 is a critical-severity Incorrect Privilege Assignment vulnerability in the miniOrange OTP Login, Verification and SMS Notifications WordPress plugin, affecting versions <= 5.4.9. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 5.5.0; sites on affected versions should update now. Disclosed May 2026, reported by Peng Zhou.
Vulnerability Overview
The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.4.9. This makes it possible for unauthenticated attackers to elevate their privileges to that of an administrator.
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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-266: Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
Remediation
Update to version 5.5.0, or a newer patched version
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: miniOrange OTP Login, Verification and SMS Notifications 5.5.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in miniOrange OTP Login, Verification and SMS Notifications
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