CVE-2024-33999
CVE-2024-33999 is a critical-severity vulnerability in Moodle with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-1760
- Weakness: CWE-20
- Affected product: Moodle
- Published:
- Last modified:
Description
The referrer URL used by MFA required additional sanitizing, rather than being used directly.
Frequently asked questions
- What is CVE-2024-33999?
- The referrer URL used by MFA required additional sanitizing, rather than being used directly.
- How severe is CVE-2024-33999?
- CVE-2024-33999 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-33999 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-33999?
- CVE-2024-33999 affects Moodle. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-33999?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2024-33999 have an EU (EUVD) identifier?
- Yes. CVE-2024-33999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1760.
- When was CVE-2024-33999 published?
- CVE-2024-33999 was published on 2024-05-31 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
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