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Fencer Intel
medium 5.0

CVE-2013-2083 json

Moodle is vulnerable to Improper Input Validation in MoodleQuickForm class

published 13y ago modified 4mo ago also GHSA-m63h-q4x3-6hwj , EUVD-2022-4498

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

The MoodleQuickForm class in lib/formslib.php in Moodle through 2.1.10, 2.2.x before 2.2.10, 2.3.x before 2.3.7, and 2.4.x before 2.4.4 does not properly handle a certain array-element syntax, which allows remote attackers to bypass intended form-data filtering via a crafted request.

Patch / fix

  • packagist moodle/moodle 2.2.10, 2.3.7, 2.4.4

Is CVE-2013-2083 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-2083 updated cvss 4.3

moodle: upstream 2.4.4, 2.3.7, and 2.2.10 fixes

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.34% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
<2.2.10
>=2.3.0, <2.3.7
>=2.4.0, <2.4.4
2.2.10
2.3.7
2.4.4

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.