Vulnerability Details : CVE-2016-2156
calendar/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 provides calendar-event data without considering whether an activity is hidden, which allows remote authenticated users to obtain sensitive information via a web-service request.
Vulnerability category: Information leak
Products affected by CVE-2016-2156
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.3:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.4:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.3:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.5:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.2:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.4:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.7:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.6:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.5:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.6:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.8:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.7:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.9:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.8:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.10:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:3.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.9:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.11:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.9.4:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.8.10:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.12:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-2156
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-2156
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2016-2156
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-2156
-
http://www.securitytracker.com/id/1035333
Moodle Bugs Let Remote Authenticated Users Obtain Potentially Sensitive Information and Bypass Security Restrictions and Remote Users Conduct Cross-Site Scripting and Cross-Site Request Forgery Attack
-
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-52808
Official Moodle git projects - moodle.git/search
-
http://www.openwall.com/lists/oss-security/2016/03/21/1
oss-security - moodle security release
-
https://moodle.org/mod/forum/discuss.php?d=330178
Moodle.org: MSA-16-0008: External function get_calendar_events return events that pertains to hidden activitiesVendor Advisory
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