CVE-2024-33999: Moodle Improper Input Validation

May 31, 2024 (updated June 4, 2024)

Unsafe direct use of $_SERVER[‘HTTP_REFERER’] in admin/tool/mfa/index.php. The referrer URL used by MFA required additional sanitizing, rather than being used directly.

References

github.com/advisories/GHSA-r2wx-46gp-rp3h
github.com/moodle/moodle
moodle.org/mod/forum/discuss.php?d=458387
nvd.nist.gov/vuln/detail/CVE-2024-33999

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