CVE-2017-7531
Moodle Information Disclosure
In Moodle 3.3, the course overview block reveals activities in hidden courses.
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
What each source reports
NVD Score used
In Moodle 3.3, the course overview block reveals activities in hidden courses.
- Record
CVE-2017-7531- 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 List No score
In Moodle 3.3, the course overview block reveals activities in hidden courses.
- Record
CVE-2017-7531- Updated
- 2026-11-02
EUVDEUVD-2022-5466 No score
In Moodle 3.3, the course overview block reveals activities in hidden courses.
- Record
EUVD-2022-5466- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w2pj-r8m3-r4jc
Moodle Information Disclosure
In Moodle 3.3, the course overview block reveals activities in hidden courses.
- Record
GHSA-w2pj-r8m3-r4jc- 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 3.3, the course overview block reveals activities in hidden courses.
- Record
CVE-2017-7531- 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-w2pj-r8m3-r4jc
Moodle Information Disclosure
In Moodle 3.3, the course overview block reveals activities in hidden courses.
- Record
GHSA-w2pj-r8m3-r4jc- 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-2017-7531
In Moodle 3.3, the course overview block reveals activities in hidden courses.
- Record
UBUNTU-CVE-2017-7531- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist |
before 3.3.1 | 3.3.1 |
moodle/moodlePackagist |
before 3.3.1, 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 |
3.3.1 |
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 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-7531 is a medium vulnerability (CVSS 4.3) in Moodle, published July 17, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.91%, the 60th percentile. Fixed in moodle/moodle 3.3.1.
References
moodle.org/mod/forum/discuss.php?d=355555
securityfocus.com/bid/99618
nvd.nist.gov/vuln/detail/CVE-2017-7531
github.com/moodle/moodle/commit/2fe7f706d7567babd6c7aeb6612f231d2ce2fb2f
web.archive.org/web/20210124081202/http://www.securityfocus.com/bid/99618
ubuntu.com/security/CVE-2017-7531
cve.org/CVERecord?id=CVE-2017-7531
Left out here: 109 versions. The JSON record has them.