CVE-2016-8643
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
CVE-2016-8643 is a medium vulnerability (CVSS 4.3) in Moodle, published January 20, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 53rd percentile. No source names a fixed version.
- Severity
- 4.3 MediumCVSS 3.0, NVD
- Exploit chance
- 0.68%EPSS, 53rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
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
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
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 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
- Record
CVE-2016-8643- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
CVE ListNo score
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
- Record
CVE-2016-8643- Updated
- 2026-11-02
EUVDEUVD-2016-9483No score
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
- Record
EUVD-2016-9483- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-69xm-pcg8-8qxm
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
- Record
GHSA-69xm-pcg8-8qxm- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
OSV
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
- Record
CVE-2016-8643- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-8643
In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.
- Record
UBUNTU-CVE-2016-8643- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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.