CVE-2026-111603CWE-639

CVE-2026-111603

Medium · published October 16, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
15.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00251 · 15.6th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-16T22:17Z
References (5)
https://github.com/PlayEdu/PlayEdu · [email protected]https://github.com/PlayEdu/PlayEdu/blob/2.3/playedu-api/playedu-api/src/main/java/xyz/playedu/api/controller/frontend/CourseController.java#L57-L132 · [email protected]https://hackmd.io/@hieuPenguinnn/playedu-course-attachment-cross-department-authz · [email protected]https://www.vulncheck.com/advisories/playedu-through-2.3-missing-authorization-via-student-coursecontroller-endpoints · [email protected]https://hackmd.io/@hieuPenguinnn/playedu-course-attachment-cross-department-authz · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:38Z
    PlayEdu through 2.3 Missing Authorization via Student CourseController Endpoints
    cvelistv5
  • 16 OCT 17:38Z
    PlayEdu through 2.3 Missing Authorization via Student CourseController Endpoints
    cvelistv5