Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated remote OTP-verification bypass yields privilege escalation with no user interaction, so AV:N/AC:L/PR:N/UI:N and full C/I/A impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated Privilege Escalation in miniorange otp verification <= 5.5.1 versions.
AnalysisAI
Privilege escalation in the miniOrange OTP Verification WordPress plugin (versions 5.5.1 and earlier) allows unauthenticated remote attackers to elevate their privileges, per a Patchstack advisory. The flaw is rooted in a weak account/OTP verification mechanism (CWE-640) that can be abused without any credentials, and carries a CVSS 9.8 rating reflecting full confidentiality, integrity, and availability impact. No public exploit identified at time of analysis, and it is not listed in CISA KEV, but the unauthenticated network vector makes this a high-priority patching candidate.
Technical ContextAI
The affected component is the miniOrange OTP Verification plugin for WordPress, which adds one-time-password verification to registration, login, and form flows (CPE cpe:2.3:a:miniorange:miniorange_otp_verification). The assigned CWE-640 (Weak Password Recovery / Verification Mechanism for Forgotten Password) indicates the root cause lies in how the plugin validates OTP-based identity or recovery challenges - for example predictable, reusable, or improperly enforced OTP checks that an attacker can satisfy or bypass. Because OTP verification gates account creation and authentication in WordPress, a weakness here can be leveraged to register or authenticate as a higher-privileged account, translating a verification bypass into privilege escalation.
RemediationAI
Upgrade the miniOrange OTP Verification plugin to a release newer than 5.5.1 as soon as the vendor publishes it; the affected range is <= 5.5.1 but the exact patched version is not confirmed in the available data, so consult the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/miniorange-otp-verification/vulnerability/wordpress-miniorange-otp-verification-plugin-5-5-1-privilege-escalation-vulnerability) and the plugin's WordPress.org changelog to confirm the fixed build. If an update is not yet available, compensating controls include temporarily deactivating the OTP Verification plugin (trade-off: removes OTP-based verification from registration/login flows), restricting access to the affected verification/registration endpoints via WAF or web-server rules, and disabling open user registration in WordPress settings to limit who can trigger the flow. Monitor for unexpected new administrator or elevated-privilege accounts.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-57972
GHSA-56v2-rm7h-g26f