How to fix CVE-2025-47555?

Within 24 hours: Identify all systems running Tutor LMS ≤3.9.4 and assess current user access patterns for anomalies. Within 7 days: Implement compensating controls including WAF rules to restrict suspicious authorization requests, enforce network segmentation to limit LMS access, and disable non-essential features if possible. Within 30 days: Monitor vendor for patch availability, prepare upgrade plan to patched version immediately upon release, and conduct access control audit to remediate any unauthorized access that may have occurred.

CVE-2025-47555

HIGH

2026-01-22 [email protected]

Authentication Bypass

8.1

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 22, 2026 - 17:15 nvd

HIGH 8.1

DescriptionNVD

Authorization Bypass Through User-Controlled Key vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.4.

AnalysisAI

Technical ContextAI

Classified as CWE-639 (Authorization Bypass Through User-Controlled Key). Affects Themeum Tutor LMS tutor. Authorization Bypass Through User-Controlled Key vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.4.

Affected ProductsAI

Product: Themeum Tutor LMS tutor.

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

CVE-2025-47555 vulnerability details – vuln.today

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