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  5. CVE-2023-23923

CVE-2023-23923: Improper Access Control

February 17, 2023 (updated February 28, 2023)

The vulnerability was found Moodle which exists due to insufficient limitations on the “start page” preference. A remote attacker can set that preference for another user. The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

References

  • git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-76862
  • bugzilla.redhat.com/show_bug.cgi?id=2162549
  • moodle.org/mod/forum/discuss.php?d=443274
  • nvd.nist.gov/vuln/detail/CVE-2023-23923

Code Behaviors & Features

Detect and mitigate CVE-2023-23923 with GitLab Dependency Scanning

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Affected versions

All versions starting from 3.9.0 before 3.9.19, all versions starting from 3.11.0 before 3.11.12, all versions starting from 4.0.0 before 4.0.6, version 4.1.0

Fixed versions

  • 3.9.19
  • 3.11.12
  • 4.0.6
  • 4.1.1

Solution

Upgrade to versions 3.9.19, 3.11.12, 4.0.6, 4.1.1 or above.

Impact 8.2 HIGH

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

Learn more about CVSS

Source file

packagist/moodle/moodle/CVE-2023-23923.yml

Spotted a mistake? Edit the file on GitLab.

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