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Vulnerability details: VCID-5hx1-9xbg-g3fn
Vulnerability ID VCID-5hx1-9xbg-g3fn
Aliases CVE-2016-2156
GHSA-h8vc-v44p-5r2q
Summary Exposure of Sensitive Information to an Unauthorized Actor 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
There are no known severity scores.
Reference id Reference type URL
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-52808
https://github.com/moodle/moodle/commit/39b851376337b853c8d403dcba64645d16f0a9bd
https://github.com/moodle/moodle/commit/783e695e00689d67925d6f83722d344c0bd6de94
https://github.com/moodle/moodle/commit/854e7b8ed0a84eb91ca455ca290427d22bc20baf
https://github.com/moodle/moodle/commit/c631b112d6e729c84f5d559371a399fe54502ba3
https://github.com/moodle/moodle/commit/d63ac148b95e5f909618e75efd76f6b5032da158
https://moodle.org/mod/forum/discuss.php?d=330178
https://web.archive.org/web/20160424224349/http://www.securitytracker.com/id/1035333
http://www.openwall.com/lists/oss-security/2016/03/21/1
CVE-2016-2156 https://nvd.nist.gov/vuln/detail/CVE-2016-2156
GHSA-h8vc-v44p-5r2q https://github.com/advisories/GHSA-h8vc-v44p-5r2q
No exploits are available.
There are no known vectors.

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:42:58.070702+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/moodle/moodle/CVE-2016-2156.yml 38.6.0