miniOrange OTP Login, Verification and SMS Notifications <= 5.5.5 — Unauthenticated Authentication Bypass via 'mo_wp_login_intent' Parameter
CVE-2026-85984Published · Updated Action summary
Affected: ≤5.5.5Update to 5.5.6 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-287 Improper Authentication
- Required access
- No account needed
- Exploit prediction (EPSS)
- 1.0% chance in 30 days64th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
miniOrange OTP Login, Verification and SMS Notifications miniorange-otp-verification
- Affected≤ 5.5.5
- Patched in5.5.6
Update to 5.5.6 or newer.
You are affected if you run ≤ 5.5.5. Version 5.5.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under miniOrange OTP Login, Verification and SMS Notifications.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 5.5.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch miniOrange OTP Login, Verification and SMS Notifications to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Supakiad S. (m3ez).
The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass via the mo_wp_login_intent parameter in all versions up to, and including, 5.5.5. This is due to a missing password-intent guard in the skip_pass_fallback-enabled configuration branch of the mo_by_pass_login() function, which treats administrator role membership alone as sufficient authentication whenever the unauthenticated, unverified POST parameter mo_wp_login_intent is submitted with the value otp, causing mo_get_user() to skip wp_authenticate_username_password() and resolve a WP_User purely from a username lookup. This makes it possible for unauthenticated attackers to log in as any existing administrator account by supplying only a known username and an empty password alongside mo_wp_login_intent=otp, with no password or OTP verification required. Exploitation is conditional on a site administrator having simultaneously enabled the following plugin options: WP Login OTP, Login with Only OTP, Allow Users to Login with Username and Password, and Admin OTP Bypass.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in miniOrange OTP Login, Verification and SMS Notifications
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Unauthenticated Authentication Bypass via Delay OTP Grace State ≤5.5.8Update to 5.6.0 | CVE-2026-103895 | |
| High7.3 | Unauthenticated Privilege Escalation ≤5.5.7Update to 5.5.8 | CVE-2026-106610 | |
| Critical9.8 | Unauthenticated Privilege Escalation ≤5.5.1Update to 5.5.2 | CVE-2026-61967 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤5.5.1Update to 5.5.2 | CVE-2026-61957 | |
| Critical9.8 | Authentication Bypass to Administrator Account Takeover via 'username_b' Parameter ≤5.5.1Update to 5.5.2 | CVE-2026-14245 |
- High8.1Unauthenticated Authentication Bypass via Delay OTP Grace State
≤5.5.8Update to 5.6.0
- High7.3Unauthenticated Privilege Escalation
≤5.5.7Update to 5.5.8
- Critical9.8Unauthenticated Privilege Escalation
≤5.5.1Update to 5.5.2
- High7.2Unauthenticated Stored Cross-Site Scripting
≤5.5.1Update to 5.5.2
- Critical9.8Authentication Bypass to Administrator Account Takeover via 'username_b' Parameter
≤5.5.1Update to 5.5.2
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.