5

CVE-2011-4586: moodle

CVSS: 5.0v2.0MediumModified
Published 20-07-2012Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2011-4586 is a medium (CVSS 5.0) vulnerability in moodle. EPSS estimates a 2.10% chance of exploitation in the next 30 days, higher than 81.4% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
2.10%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DSA-2421-1

Timeline

  1. 20-07-2012
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

CRLF injection vulnerability in calendar/set.php in the Calendar subsystem in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.10%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.10% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.10%

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

No weakness data has been published for this record.

Affected systems

Moodle1 product
  • moodle1.9.1 | 1.9.2 | 1.9.3 | 1.9.4 | 1.9.5 | 1.9.6 | 1.9.7 | 1.9.8 | 1.9.9 | 1.9.10 | 1.9.11 | 1.9.12 | 1.9.13 | 1.9.14 | 2.0.0 | 2.0.1 | 2.0.2 | 2.0.3 | 2.0.4 | 2.0.5 | 2.1.0 | 2.1.1 | 2.1.2

1 vendor · 1 product

References

4 links