How severe is CVE-2025-67857?

CVE-2025-67857 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-67857 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67857?

CVE-2025-67857 primarily affects Moodle. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-67857?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-67857 have an EU (EUVD) identifier?

Yes. CVE-2025-67857 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206751.

When was CVE-2025-67857 published?

CVE-2025-67857 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2025-67857

CVE-2025-67857 is a medium-severity vulnerability in Moodle with a CVSS 3.x base score of 4.3. 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-201.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206751
Weakness: CWE-201
Affected product: Moodle
Published: 2026-02-03
Last modified: 2026-06-17

Description

A flaw was found in moodle. During anonymous assignment submissions, user identifiers were inadvertently exposed in URLs. This data exposure allows unauthorized viewers to see internal user IDs, compromising the intended anonymity and potentially leading to information disclosure.

Frequently asked questions

What is CVE-2025-67857?: A flaw was found in moodle. During anonymous assignment submissions, user identifiers were inadvertently exposed in URLs. This data exposure allows unauthorized viewers to see internal user IDs, compromising the intended anonymity and potentially leading to information disclosure.
How severe is CVE-2025-67857?: CVE-2025-67857 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-67857 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67857?: CVE-2025-67857 primarily affects Moodle. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-67857?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-67857 have an EU (EUVD) identifier?: Yes. CVE-2025-67857 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206751.
When was CVE-2025-67857 published?: CVE-2025-67857 was published on 2026-02-03 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:5.1.0:-:*:*:*:*:*:*

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