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CVE-2026-25406

8.8
High
EPSS 0.34%Mar 27, 2026

Auth bypass in Tutor LMS Pro enables authentication abuse (CWE-288) up to v3.9.4.

common questions

Is CVE-2026-25406 being exploited?

Not confirmed. CVE-2026-25406 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.34% probability of exploitation in the next 30 days.

How severe is CVE-2026-25406?

CVE-2026-25406 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-25406?

Not known from our data. No patch reference has been recorded for CVE-2026-25406, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2026-25406 affect?

CVE-2026-25406 affects Tutor LMS Pro (Themeum) <= 3.9.4. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-25406?

Upgrade to latest Tutor LMS Pro version; review permissions and accounts.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Tutor LMS Pro (Themeum) <= 3.9.4
impact

Allows login bypass to access user/admin areas and content without valid credentials.

action required

Immediate action required

affected versions
Themeum Tutor LMS Pro
  • affected<= 3.9.4

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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