Vulnerability Details : CVE-2019-3850
A vulnerability was found in moodle before versions 3.6.3, 3.5.5, 3.4.8 and 3.1.17. Links within assignment submission comments would open directly (in the same window). Although links themselves may be valid, opening within the same window and without the no-referrer header policy made them more susceptible to exploits.
Vulnerability category: Open redirect
Products affected by CVE-2019-3850
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-3850
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-3850
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
6.1
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST | |
4.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
2.8
|
1.4
|
Red Hat, Inc. |
CWE ids for CVE-2019-3850
-
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-3850
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3850
1692916 – (CVE-2019-3850) CVE-2019-3850 moodle: Stored HTML in assignment submission comments allowed links to be opened directlyIssue Tracking;Patch;Third Party Advisory
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https://moodle.org/mod/forum/discuss.php?d=384013#p1547745
Moodle.org: MSA-19-0007: Stored HTML in assignment submission comments allowed links to be opened directlyVendor Advisory;Patch
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