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Fencer Vulns
medium 4.3

CVE-2025-67857 json

Moodle: moodle: data exposure of user identifiers in urls

published 2026-02-03 9 mo ago modified 2026-09-08 2 mo ago also BIT-moodle-2025-67857 , EUVD-2025-206751 , GHSA-8jrv-wx83-w3xj

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist moodle/moodle 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1
  • bitnami moodle 4.1.21, 4.4.11, 4.5.8, 5.0.4, 5.1.1
  • moodle moodle 4.1.21, 4.4.11, 4.5.8, 5.0.4

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-67857 updated cvss 4.3

moodle: Moodle: Data exposure of user identifiers in URLs

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
GitHub 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
<4.1.22
>=4.4.0-beta, <4.4.12
>=4.5.0-beta, <4.5.8
>=5.0.0-beta, <5.0.4
>=5.1.0-beta, <5.1.1
4.1.22
4.4.12
4.5.8
5.0.4
5.1.1
bitnami moodle
<4.1.21
>=4.4.0, <4.4.11
>=4.5.0, <4.5.8
>=5.0.0, <5.0.4
>=5.1.0, <5.1.1
4.1.21
4.4.11
4.5.8
5.0.4
5.1.1

Classification

Weakness
  • CWE-201 Insertion of Sensitive Information Into Sent Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.