Vulnerability Details : CVE-2014-7831
lib/classes/grades_external.php in Moodle 2.7.x before 2.7.3 does not consider the moodle/grade:viewhidden capability before displaying hidden grades, which allows remote authenticated users to obtain sensitive information by leveraging the student role to access the get_grades web service.
Vulnerability category: Information leak
Exploit prediction scoring system (EPSS) score for CVE-2014-7831
Probability of exploitation activity in the next 30 days: 0.16%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 52 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-7831
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST |
CWE ids for CVE-2014-7831
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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-2014-7831
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http://www.securitytracker.com/id/1031215
Moodle Bugs Permit Cross-Site Scripting, Cross-Site Request Forgery, and Information Disclosure Attacks - SecurityTracker
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http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-47766
Official Moodle git projects - moodle.git/search
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http://openwall.com/lists/oss-security/2014/11/17/11
oss-security - Moodle security issues are now public
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https://moodle.org/mod/forum/discuss.php?d=275153
Moodle.org: MSA-14-0038: Hidden grade information exposed by web servicesVendor Advisory
Products affected by CVE-2014-7831
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:2.7.2:*:*:*:*:*:*:*