How severe is CVE-2025-3638?

CVE-2025-3638 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-3638 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3638?

CVE-2025-3638 affects Moodle. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3638?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-3638 have an EU (EUVD) identifier?

Yes. CVE-2025-3638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12523.

When was CVE-2025-3638 published?

CVE-2025-3638 was published on 2025-04-25 and last updated on 2026-06-17.

CVE-2025-3638

CVE-2025-3638 is a high-severity vulnerability in Moodle with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12523
Weakness: CWE-352
Affected product: Moodle
Published: 2025-04-25
Last modified: 2026-06-17

Description

A flaw was found in Moodle. The analysis request action in the Brickfield tool did not include the necessary token to prevent a Cross-site request forgery (CSRF) risk.

Frequently asked questions

What is CVE-2025-3638?: A flaw was found in Moodle. The analysis request action in the Brickfield tool did not include the necessary token to prevent a Cross-site request forgery (CSRF) risk.
How severe is CVE-2025-3638?: CVE-2025-3638 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-3638 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3638?: CVE-2025-3638 affects Moodle. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3638?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-3638 have an EU (EUVD) identifier?: Yes. CVE-2025-3638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12523.
When was CVE-2025-3638 published?: CVE-2025-3638 was published on 2025-04-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

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