CVE-2026-111603

MEDIUM 4.3

PlayEdu through 2.3 Missing Authorization via Student CourseController Endpoints

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

PlayEdu through 2.3 contains a missing authorization vulnerability in the CourseController that allows authenticated students to access department-restricted courses by omitting the department visibility check. Attackers can enumerate sequential course and attachment IDs via the course details and attachment download endpoints to obtain course structure and attachment files from other departments.

CWE	CWE-639
Vendor	playedu
Product	playedu
Published	Oct 16, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

PlayEdu / PlayEdu

0 ≤ 2.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hackmd.io: https://hackmd.io/@hieuPenguinnn/playedu-course-attachment-cross-department-authz github.com: https://github.com/PlayEdu/PlayEdu/blob/2.3/playedu-api/playedu-api/src/main/java/xyz/playedu/api/controller/frontend/CourseController.java#L57-L132 github.com: https://github.com/PlayEdu/PlayEdu vulncheck.com: https://www.vulncheck.com/advisories/playedu-through-2.3-missing-authorization-via-student-coursecontroller-endpoints

Credits

hieuPenguinnn