๐Ÿ” CVE Alert

CVE-2026-88065

HIGH 7.5

`tts-be` application has a Broken Access Control vulnerability

CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th

`tts-be` is a backend for a timetable selector that aims to help students better choose their class schedules. Versions prior to 2.1.0 have a Broken Access Control vulnerability across several API endpoints (such as `/api/student/{id}/photo` and `/api/course_unit/{id}/exchange/metadata`). By chaining these unauthenticated endpoints, a remote attacker can use the backend as an open proxy to bypass authorization checks, allowing for the enumeration and extraction of sensitive Personally Identifiable Information (PII) from upstream university systems. The exposed data includes full names, student IDs, class schedules, and photos. This issue was fixed in version 2.1.0.

CWE CWE-200 CWE-306 CWE-639
Vendor niaefeup
Product tts-be
Published Sep 15, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Affected Versions

NIAEFEUP / tts-be
< 2.1.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/NIAEFEUP/tts-be/security/advisories/GHSA-fpfp-hr42-fvpm