8.1

CVE-2018-1137: moodle Improper Input Validation

CVSS: 8.1v3.0HighModified
AliasesUBUNTU-CVE-2018-1137
Published 25-05-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-1137 is a high (CVSS 8.1) Improper Input Validation vulnerability in moodle. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.4% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.0 (NVD)
EPSS score
1.74%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-05-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Moodle 3.x. By substituting URLs in portfolios, users can instantiate any class. This can also be exploited by users who are logged in as guests to create a DDoS attack.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.74%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

+0.09 pp

From 1.65% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Moodle1 product
  • moodle≥ 3.1.0, ≤ 3.1.11 | ≥ 3.2.0, ≤ 3.2.8 | ≥ 3.3.0, ≤ 3.3.5 | ≥ 3.4.0, ≤ 3.4.2
Ubuntu1 product
  • moodleAll versions (No fix recorded)

2 vendors · 2 products

References

4 links