Medium severity · published Mar 26, 2019
CVE-2019-3850
A vulnerability was found in moodle before versions 3.6.3, 3.5.5, 3.4.8 and 3.1.17
6.1
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Moodle · Moodle
before 3.1.17; 3.4.0 before 3.4.8; 3.5.0 before 3.5.5; 3.6.0 before 3.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-3850
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-3850
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3850
Patch
https://moodle.org/mod/forum/discuss.php?d=384013#p1547745
More from Moodle
10.0
CVE-2019-3809
A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions
9.8
CVE-2025-67856
Moodle: moodle: privilege escalation via incomplete role checks in badge awarding
9.8
CVE-2025-26533
An SQL injection risk was identified in the module list filter within course search
9.8
CVE-2024-33999
The referrer URL used by MFA required additional sanitizing, rather than being used directly
9.8
CVE-2023-5550
In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user who also has direct access to the web server outside of the…