GoogleOSV:GHSA-622H-CJGG-5MX6Moodle allows attackers to bypass file-management restrictions
files/externallib.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 does not consider the moodle/user:manageownfiles capability before approving a private-file upload, which allows remote authenticated users to bypass intended file-management restrictions by using web services to perform uploads after this capability has been revoked.
References
git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-49994
openwall.com/lists/oss-security/2015/05/18/1
github.com/moodle/moodle
github.com/moodle/moodle/commit/350397da93c557f577e7d62e7fc3e233792ad171
github.com/moodle/moodle/commit/4b6b64685affa66784fd238c1bbc1eb0651492a0
github.com/moodle/moodle/commit/57d9a750e3da6708dba13513e9b05e84a895ad9f
github.com/moodle/moodle/commit/8e8ee7530427a10e409386657484e9fd5effc438
moodle.org/mod/forum/discuss.php?d=313688
nvd.nist.gov/vuln/detail/CVE-2015-3181
web.archive.org/web/20200228054133/www.securityfocus.com/bid/74728
web.archive.org/web/20201030042703/www.securitytracker.com/id/1032358
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