CVE-2026-51876 DeepTutor - Authorization Bypass

DeepTutor 1.4.0 contains an authorization bypass caused by reuse of publicly exposed book_id in the book confirmation flow, letting unauthenticated or unauthorized callers overwrite persisted metadata and spine content.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
1 October 2026
Updated
15 October 2026
Weakness
CWE-285

Vendor fix

Update to the latest version that patches the authorization bypass vulnerability.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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