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Vulnerability record · CVE-2023-5542 · published 9 November 2023

CVE-2023-5542: Moodle improper access control vulnerability

Moodle · Moodle

Students in "Only see own membership" groups could see other students in the group, which should be hidden.

4.3 CVSS 3.1 Medium EPSS 0.43% · top 64.7% CWE-284 · Improper access controlCWE-668 · Exposure of resource to wrong sphere
4.3CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Students in "Only see own membership" groups could see other students in the group, which should be hidden.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79213 Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2243441 Issue TrackingPatchThird Party Advisory
https://moodle.org/mod/forum/discuss.php?d=451583 PatchVendor Advisory
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79213 Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2243441 Issue TrackingPatchThird Party Advisory
https://moodle.org/mod/forum/discuss.php?d=451583 PatchVendor Advisory

Track CVE-2023-5542 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-5542), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.