Vulnerability Monitor

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CVE-2018-1081

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited integrity, for affected systems. Impacting 1 product from moodle organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-04-04T21:29:00.213

Last Modified

2024-11-21T03:59:08.370

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-79
Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	moodle	moodle	≤ 3.0.10	Yes
Application	moodle	moodle	≤ 3.1.10	Yes
Application	moodle	moodle	≤ 3.2.7	Yes
Application	moodle	moodle	≤ 3.3.4	Yes
Application	moodle	moodle	≤ 3.4.1	Yes

References

http://www.securityfocus.com/bid/103728 Third Party Advisory, VDB Entry ([email protected])
https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-61392 Patch, Vendor Advisory ([email protected])
https://moodle.org/mod/forum/discuss.php?d=367938 Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/103728 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-61392 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://moodle.org/mod/forum/discuss.php?d=367938 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For moodle's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.