CVE-2026-71241: CWE-306 Missing Authentication for Critical Function in lyric777 Book-Management-System
Book-Management-System's Flask API endpoints /student, /record, /books, /find_stu_book, and /find_not_return_book are missing the @login_required decorator that protects sibling routes (/search_student, /storage) in the same file. Because card_id values are sequential integers, the entire student database can be enumerated without authentication.
AI Analysis
Technical Summary
CVE-2026-71241 describes a missing authentication vulnerability (CWE-306) in the lyric777 Book-Management-System. Several Flask API endpoints are missing the @login_required decorator, which is present on related routes. This omission allows unauthenticated users to access sensitive student data. The sequential nature of card_id values enables enumeration of the entire student database without any authentication or authorization checks.
Potential Impact
An attacker can access sensitive student information without authentication by enumerating sequential card_id values through unprotected API endpoints. This leads to a confidentiality breach of the student database. There is no indication of impact on integrity or availability.
Mitigation Recommendations
No official patch or remediation guidance is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is provided, it is recommended to restrict access to the affected endpoints or implement authentication controls similar to the protected sibling routes.
CVE-2026-71241: CWE-306 Missing Authentication for Critical Function in lyric777 Book-Management-System
Description
Book-Management-System's Flask API endpoints /student, /record, /books, /find_stu_book, and /find_not_return_book are missing the @login_required decorator that protects sibling routes (/search_student, /storage) in the same file. Because card_id values are sequential integers, the entire student database can be enumerated without authentication.
CVSS v3.1
Score 7.5high
Affected software
lyric777
Book-Management-System
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-71241 describes a missing authentication vulnerability (CWE-306) in the lyric777 Book-Management-System. Several Flask API endpoints are missing the @login_required decorator, which is present on related routes. This omission allows unauthenticated users to access sensitive student data. The sequential nature of card_id values enables enumeration of the entire student database without any authentication or authorization checks.
Potential Impact
An attacker can access sensitive student information without authentication by enumerating sequential card_id values through unprotected API endpoints. This leads to a confidentiality breach of the student database. There is no indication of impact on integrity or availability.
Mitigation Recommendations
No official patch or remediation guidance is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is provided, it is recommended to restrict access to the affected endpoints or implement authentication controls similar to the protected sibling routes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TuranSec
- Date Reserved
- 2026-08-05T10:53:53.175Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a731a81bf8831d539c95ca8
Added to database: 08/05/2026, 11:12:01 UTC
Last enriched: 08/12/2026, 14:28:33 UTC
Last updated: 09/17/2026, 22:01:38 UTC
Views: 55
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