CVE-2026-120199 (CVSS 4.3)

Description

LearnHouse before 1.1.1 contains a missing authorization vulnerability in the assignment API that allows authenticated users to read other users' grades and submissions. Attackers can supply another user_id to the submissions grade endpoint or query submission read functions to view other students' work, grades and instructor feedback.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-639 CWE-639

References

Other References

https://github.com/learnhouse/learnhouse https://github.com/learnhouse/learnhouse/blob/1.1.0/apps/api/src/services/courses/activities/assignments.py#L1673 https://github.com/learnhouse/learnhouse/commit/844a8a7787f0c42d466be604aaf47d296748b1b3 https://github.com/learnhouse/learnhouse/issues/1184 https://github.com/learnhouse/learnhouse/pull/1187 https://www.vulncheck.com/advisories/learnhouse-before-1.1.1-missing-authorization-via-assignment-submissions-api

Frequently Asked Questions

What is CVE-2026-120199? +

LearnHouse before 1.1.1 contains a missing authorization vulnerability in the assignment API that allows authenticated users to read other users' grades and submissions. Attackers can supply another user_id to the submissions grade endpoint or query submission read functions to view other students' work, grades and instructor feedback. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-120199? +

CVE-2026-120199 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-120199? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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