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CVE-2024-33999

Moodle vulnerability

9.8 CRITICALEPSS 0.54%
  1. Published31 May 2024

Description

The referrer URL used by MFA required additional sanitizing, rather than being used directly.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Moodle≥ 4.3.0 < 4.3.4

Remediation

Fixed in
Moodle≥ 4.3.4

References

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Frequently asked

Is CVE-2024-33999 being actively exploited?

CVE-2024-33999 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.54%.

How severe is CVE-2024-33999?

CVE-2024-33999 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.54% probability of exploitation.

Which products are affected by CVE-2024-33999?

Affected products include Moodle.

How do I fix CVE-2024-33999?

Upgrade affected software to a fixed version, for example Moodle 4.3.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-33999 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.