CVE-2017-12157
Moodle sensitive information disclosure
CVE-2017-12157 is a medium vulnerability (CVSS 4.3) in Moodle, published September 18, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.10%, the 66th percentile. Fixed in moodle/moodle 3.3.2.
- Severity
- 4.3 MediumCVSS 3.0, NVD
- Exploit chance
- 1.10%EPSS, 66th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
3.3.2moodle/moodle +7 more
Description
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist | 3.3.0 to 3.3.1 | 3.3.2 |
moodle/moodlePackagist | 3.2.0 to 3.2.4 | 3.2.5 |
moodle/moodlePackagist | through 3.1.7 | 3.1.8 |
moodle/moodlePackagist | 3.3.0 up to 3.3.2, plus listed versions v3.3.0v3.3.1 | 3.3.2 |
moodle/moodlePackagist | 3.2.0 up to 3.2.5, plus listed versions v3.2.0v3.2.1v3.2.2v3.2.3v3.2.4 | 3.2.5 |
moodle/moodlePackagist | before 3.1.8, plus listed versions v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6 Show 45 moreShow lessv2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9v2.7.0v2.7.0-betav2.7.0-rc1 | 3.1.8 |
moodleUbuntu:Pro:16.04:LTS | All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 | None known |
moodleUbuntu:Pro:18.04:LTS | All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 | None known |
What each source reports
NVD Score used
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
CVE-2017-12157- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE ListNo score
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
CVE-2017-12157- Updated
- 2026-11-02
EUVDEUVD-2022-4025No score
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
EUVD-2022-4025- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gw95-48xq-gqf9
Moodle sensitive information disclosure
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
GHSA-gw95-48xq-gqf9- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
CVE-2017-12157- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-gw95-48xq-gqf9
Moodle sensitive information disclosure
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
GHSA-gw95-48xq-gqf9- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-12157
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Record
UBUNTU-CVE-2017-12157- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
securityfocus.com/bid/100848
moodle.org/mod/forum/discuss.php?d=358586
nvd.nist.gov/vuln/detail/CVE-2017-12157
github.com/moodle/moodle/commit/85b531e8beae3497ec2075e07e59c581fccb317c
web.archive.org/web/20210124103841/http://www.securityfocus.com/bid/100848
ubuntu.com/security/CVE-2017-12157
cve.org/CVERecord?id=CVE-2017-12157
Left out here: 77 versions. The JSON record has them.