Auth bypass in Playedu
CVE-2026-111603
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/playedu-course-attachment-cross-department-authz (third-party-advisory)
- github.com/PlayEdu/PlayEdu/blob/2.3/playedu-api/playedu-api/src/main/java/xyz/p… (technical-description)
- github.com/PlayEdu/PlayEdu (product)
- www.vulncheck.com/advisories/playedu-through-2.3-missing-authorization-via-stud… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111603?
- CVE-2026-111603 is a medium-severity vulnerability in Playedu, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-16.
- How severe is CVE-2026-111603?
- Medium severity. CVSS v3 base score is 4.3 out of 10.