Unauthorized Message Triggering in Moodle by Users
CVE-2018-1081

5.3MEDIUM

Key Information:

Vendor
Red Hat
Status
Moodle
Vendor
CVE Published:
4 April 2018

Summary

A vulnerability in Moodle allows unauthenticated users to exploit the PayPal enrolment script, leading to spam messages sent to administrators. The issue arises when the PayPal IPN callback script forwards error emails to admins without verifying the request's origin, potentially flooding their inboxes with unwanted messages. This flawed implementation in versions 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 poses a significant risk to administrators, emphasizing the importance of validating requests before processing notifications.

Affected Version(s)

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

References

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st...
x_refsource_CONFIRM
https://moodle.org/mod/forum/discuss.php?d=367938
x_refsource_CONFIRM
http://www.securityfocus.com/bid/103728
vdb-entryx_refsource_BID

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.