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CVE-2023-27485

Insufficient verification of authorisation when accessing subresults in thmmniii/fbs-core

4.3 Medium

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 f1ae67d8bb2and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.51%Up 0.5 points since Mar 8, 2023
90%50%10%1%

What each source reports

CVE List Score used 4.3

Insufficient verification of authorisation when accessing subresults in thmmniii/fbs-core

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 f1ae67d8bb2and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.

Record
CVE-2023-27485
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02
EUVDEUVD-2023-31252 4.3

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 f1ae67d8bb2and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.

Record
EUVD-2023-31252
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
NVD 4.3

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 f1ae67d8bb2and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.

Record
CVE-2023-27485
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02
OSV 4.3

Insufficient verification of authorisation when accessing subresults in thmmniii/fbs-core

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 f1ae67d8bb2and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.

Record
CVE-2023-27485
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-27485 is a medium vulnerability (CVSS 4.3) in Thm Feedbacksystem, published March 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. No source names a fixed version.

References

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