Auth bypass in Thm Feedbacksystem
CVE-2023-27485
thmmniii/fbs-core is an open source feedback system for students. In versions prior to 1.5.3 when querying `subresults`, it is possible to query `subresults` from other users due to insufficient authorisation. This is only possible for logged-in users and it is not possible to associate the subresults with a specific user. This bug was fixed in commit `f1ae67d8bb2`and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.
Vulnerability class: Broken Access Control
EPSS: 0.005 (40.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Thm Feedbacksystem
- Thm-mni-ii Feedbacksystem — versions < 1.5.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-27485?
- CVE-2023-27485 is a medium-severity vulnerability in Thm Feedbacksystem, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2023-03-07.
- How severe is CVE-2023-27485?
- Medium severity. CVSS v3 base score is 4.3 out of 10.