CVE-2013-2083
Moodle is vulnerable to Improper Input Validation in MoodleQuickForm class
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.
Exploit likelihood
What each source reports
NVD Score used
5.0
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.
- Record
CVE-2013-2083- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2013-2083- Updated
- 2026-11-02
EUVDEUVD-2022-4498 No score
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.
- Record
EUVD-2022-4498- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m63h-q4x3-6hwj No score
Moodle is vulnerable to Improper Input Validation in MoodleQuickForm class
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.
- Record
GHSA-m63h-q4x3-6hwj- Weakness
- CWE-20
- Updated
- 2026-11-02
OSVGHSA-m63h-q4x3-6hwj No score
Moodle is vulnerable to Improper Input Validation in MoodleQuickForm class
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.
- Record
GHSA-m63h-q4x3-6hwj- Weakness
- CWE-20
- Updated
- 2026-11-02
OSVMGASA-2013-0162 No score
Updated moodle package fix security vulnerabilities
The assignment module in Moodle before 2.4.4 was not checking capabilities for users downloading all assignments as a zip (CVE-2013-2079).
The Gradebook's Overview report in Moodle before 2.4.4 was showing grade totals that may have incorrectly included hidden grades (CVE-2013-2080).
When registering a site on a hub (not Moodle.net) site in Moodle before 2.4.4, information was being sent to the hub regardless of settings chosen (CVE-2013-2081).
There was no check of permissions for viewing comments on blog posts in Moodle before 2.4.4 (CVE-2013-2082).
Form elements named using a specific naming scheme were not being filtered correctly in Moodle before 2.4.4 (CVE-2013-2083).
- Record
MGASA-2013-0162- Updated
- 2026-11-02
OSVUBUNTU-CVE-2013-2083 No score
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.
- Record
UBUNTU-CVE-2013-2083- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist |
2.3.0 up to 2.3.7 | 2.3.7 |
moodle/moodlePackagist |
2.4.0 up to 2.4.4 | 2.4.4 |
moodle/moodlePackagist |
before 2.2.10 | 2.2.10 |
moodle/moodlePackagist |
2.3.0 up to 2.3.7, plus listed versions v2.3.4v2.3.5v2.3.6 |
2.3.7 |
moodle/moodlePackagist |
2.4.0 up to 2.4.4, plus listed versions v2.4.0v2.4.1v2.4.2v2.4.3 |
2.4.4 |
moodleMageia:3 From an advisory covering 5 CVEs |
before 2.4.4-1.1.mga3 | 2.4.4-1.1.mga3 |
moodleUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
moodleUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-2083 is a medium vulnerability (CVSS 5.0) in Moodle, published May 25, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.34%, the 83rd percentile. Fixed in moodle/moodle 2.3.7.
References
lists.fedoraproject.org/pipermail/package-announce/2013-May/106965.html
git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-38885
openwall.com/lists/oss-security/2013/05/21/1
lists.fedoraproject.org/pipermail/package-announce/2013-May/107026.html
lists.fedoraproject.org/pipermail/package-announce/2013-May/106988.html
moodle.org/mod/forum/discuss.php?d=228935
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nvd.nist.gov/vuln/detail/CVE-2013-2083
github.com/moodle/moodle/commit/3c0ba94e879702b3c2f20d4cb4f9120a0bfdd9fc
github.com/moodle/moodle/commit/8a9c3f4951e05eea80775d8c82d00a64434376c7
github.com/moodle/moodle/commit/cc2fb80742af94edde20b6b57da24027f2884a24
github.com/moodle/moodle/commit/d39925c792789230e628548ecff9ca34d0a74c16
github.com/moodle/moodle/commit/d5909fd1447bc6f05dbf37d7c9eb72b79004e24a
github.com/moodle/moodle/commit/e4e1bd900a2fb73e81d761bf8a5b9d2d162073d6
github.com/moodle/moodle/commit/e8ca6884531a3162cf755d7c09c29e7933c84090
github.com/moodle/moodle/commit/eb5852672e5e45fd95b28aab58bad080b15a7b6d
github.com/moodle/moodle/commit/feeb14b9410cac5a9da7437f8cb663e6ada9c9d4
github.com/advisories/GHSA-m63h-q4x3-6hwj
github.com/moodle/moodle
advisories.mageia.org/MGASA-2013-0162.html
moodle.org/mod/forum/discuss.php?d=228930
moodle.org/mod/forum/discuss.php?d=228931
moodle.org/mod/forum/discuss.php?d=228933
moodle.org/mod/forum/discuss.php?d=228934
docs.moodle.org/dev/Moodle_2.4.4_release_notes
moodle.org/mod/forum/discuss.php?d=228536
ubuntu.com/security/CVE-2013-2083
cve.org/CVERecord?id=CVE-2013-2083