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CVE-2015-5332

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a...

6.8 Medium

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.68%Up 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.8

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.

Record
CVE-2015-5332
CVSS 3.0
6.8 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0
7.1 HighAV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness
CWE-399
Updated
2026-11-02
CVE List No score

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.

Record
CVE-2015-5332
Updated
2026-11-02
EUVDEUVD-2015-5302 No score

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.

Record
EUVD-2015-5302
Updated
2026-11-03
GitHub AdvisoriesGHSA-xfgq-37vh-892j 6.8

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a...

Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.

Record
GHSA-xfgq-37vh-892j
CVSS 3.0
6.8 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2015-0464 No score

Updated moodle packages fix security vulnerability

In Moodle before 2.8.9, if guest access is open on the site, unauthenticated users can store Atto draft data through the editor autosave area, which could be exploited in a denial of service attack (CVE-2015-5332).

In Moodle before 2.8.9, due to a CSRF issue in the site registration form, it is possible to trick a site admin into sending aggregate stats to an arbitrary domain. The attacker can send the admin a link to a site registration form that will display the correct URL but, if submitted, will register with another hub (CVE-2015-5335).

In Moodle before 2.8.9, the standard survey module is vulnerable to XSS attack by students who fill the survey (CVE-2015-5336).

In Moodle before 2.8.9, there was a reflected XSS vulnerability in the Flowplayer flash video player (CVE-2015-5337).

In Moodle before 2.8.9, password-protected lesson modules are subject to a CSRF vulnerability in the lesson login form (CVE-2015-5338).

In Moodle before 2.8.9, through web service core_enrol_get_enrolled_users it is possible to retrieve list of course participants who would not be visible when using web site (CVE-2015-5339).

In Moodle before 2.8.9, logged in users who do not have capability 'View available badges without earning them' can still access the full list of badges (CVE-2015-5340).

In Moodle before 2.8.9, the SCORM module allows to bypass access restrictions based on date and lets users view the SCORM contents (CVE-2015-5341).

In Moodle before 2.8.9, the choice module closing date can be bypassed, allowing users to delete or submit new responses after the choice module was closed (CVE-2015-5342).

Record
MGASA-2015-0464
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
moodle
Mageia:5
From an advisory covering 9 CVEs
before 2.8.9-1.mga5
2.8.9-1.mga5

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-5332 is a medium vulnerability (CVSS 6.8) in Moodle, published December 5, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.68%, the 77th percentile. No source names a fixed version.

References

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