CVE-2018-1081
Published:April 04, 2018
Updated:May 17, 2026
A flaw was found in Moodle 3.4 to 3.4.1, 3.3 to 3.3.4, 3.2 to 3.2.7, 3.1 to 3.1.10 and earlier unsupported versions. Unauthenticated users can trigger custom messages to admin via paypal enrol script. Paypal IPN callback script should only send error emails to admin after request origin was verified, otherwise admin email can be spammed.
Affected Packages
moodle/moodle (PHP):
Affected version(s) >=v3.4.0 <v3.4.2Fix Suggestion:
Update to version v3.4.2moodle/moodle (PHP):
Affected version(s) >=v3.3.0 <v3.3.5Fix Suggestion:
Update to version v3.3.5moodle/moodle (PHP):
Affected version(s) >=v3.1.0 <v3.1.11Fix Suggestion:
Update to version v3.1.11moodle/moodle (PHP):
Affected version(s) >=v3.2.0 <v3.2.8Fix Suggestion:
Update to version v3.2.8Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.93