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CVE-2014-7847

17
FAUCET Score

CVE-2014-7847 describes a denial-of-service vulnerability in Moodle versions through 2.4.11, 2.5.x before 2.5.9, 2.6.x before 2.6.6, and 2.7.x before 2.7.3. Attackers can trigger excessive resource consumption by repeatedly requesting IP address geolocation calculations via iplookup/index.php. This vulnerability has a CVSS score of 5.0, indicating a medium severity due to its network-based attack vector and potential for partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.4.11CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
2.5.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.5.0:*:*:*:*:*:*:*
2.5.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.5.1:*:*:*:*:*:*:*
2.5.2CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.5.2:*:*:*:*:*:*:*
2.5.3CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:2.5.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.43%
Probability of exploitation in next 30 days
EPSS Percentile
82.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0243 is in the 74th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.5.9
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.6.6
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 2.7.3

Vendor Advisories (1)

composerGHSA-6vjg-2q57-rgfwmedium

Moodle allows attackers to cause a denial of service

May 13, 2022

References

git.moodle.org / gw
Patch
openwall.com / lists/oss-security/2014/11/17/11
moodle.org / mod/forum/discuss.php
Vendor Advisory
securitytracker.com / id/1031215