CVE-2025-67857 - CVE House
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Status published Medium CVE-2025-67857

Moodle: moodle: data exposure of user identifiers in urls

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Red Hat would like to thank Mihail Geshoski for reporting this issue.

References

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Affected Vendor

Affected Software

Unknown
Vulnerable Versions:
4.1.0, 4.4.0, 4.5.0, 5.0.0, 5.1.0

Timeline

Official Publish: February 3rd, 2026
Last Modified: February 3rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weaknesses (CWE)

CWE-201

MITRE ATT&CK TTPs

T1041 Exfiltration Over C2 Channel
Exfiltration
T1040 Network Sniffing
Credential Access
T1557 Adversary-in-the-Middle
Collection
T1552 Unsecured Credentials
Credential Access
T1078 Valid Accounts
Persistence