CVE-2015-5337
Moodle XSS Vulnerability
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
6.1
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
- Record
CVE-2015-5337- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
- Record
CVE-2015-5337- Updated
- 2026-11-02
EUVDEUVD-2022-1996 No score
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
- Record
EUVD-2022-1996- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2hw6-6rgf-726v
6.1
Moodle XSS Vulnerability
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
- Record
GHSA-2hw6-6rgf-726v- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-2hw6-6rgf-726v
6.1
Moodle XSS Vulnerability
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
- Record
GHSA-2hw6-6rgf-726v- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2015-5337
6.1
Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.
- Record
UBUNTU-CVE-2015-5337- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - 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
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist |
through 2.6.11 | None known |
moodle/moodlePackagist |
2.7.0 up to 2.7.11 | 2.7.11 |
moodle/moodlePackagist |
2.8.0 up to 2.8.9 | 2.8.9 |
moodle/moodlePackagist |
2.9.0 up to 2.9.3 | 2.9.3 |
moodle/moodlePackagist |
through 2.6.11, plus listed versions v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6 Show 42 moreShow lessv2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9 |
None known |
moodle/moodlePackagist |
2.7.0 up to 2.7.11, plus listed versions v2.7.0v2.7.1v2.7.10v2.7.2v2.7.3 Show 6 moreShow lessv2.7.4v2.7.5v2.7.6v2.7.7v2.7.8v2.7.9 |
2.7.11 |
moodle/moodlePackagist |
2.8.0 up to 2.8.9, plus listed versions v2.8.0v2.8.1v2.8.2v2.8.3v2.8.4 Show 4 moreShow lessv2.8.5v2.8.6v2.8.7v2.8.8 |
2.8.9 |
moodle/moodlePackagist |
2.9.0 up to 2.9.3, plus listed versions v2.9.0v2.9.1v2.9.2 |
2.9.3 |
moodleMageia:5 |
before 2.8.9-1.mga5 | 2.8.9-1.mga5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| 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-2015-5337 is a medium vulnerability (CVSS 6.1) in Moodle, published December 5, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.08%, the 65th percentile. Fixed in moodle/moodle 2.7.11.
References
git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-48085
moodle.org/mod/forum/discuss.php?d=323232
nvd.nist.gov/vuln/detail/CVE-2015-5337
github.com/moodle/moodle/commit/c73f6d03e5037729097bb9f5f5a55be15f3cab18
github.com/advisories/GHSA-2hw6-6rgf-726v
github.com/moodle/moodle
Show 14 moreShow less
advisories.mageia.org/MGASA-2015-0464.html
bugs.mageia.org/show_bug.cgi?id=17280
moodle.org/mod/forum/discuss.php?d=323229
moodle.org/mod/forum/discuss.php?d=323230
moodle.org/mod/forum/discuss.php?d=323231
moodle.org/mod/forum/discuss.php?d=323233
moodle.org/mod/forum/discuss.php?d=323234
moodle.org/mod/forum/discuss.php?d=323235
moodle.org/mod/forum/discuss.php?d=323236
moodle.org/mod/forum/discuss.php?d=323237
docs.moodle.org/dev/Moodle_2.8.9_release_notes
moodle.org/mod/forum/discuss.php?d=322852
ubuntu.com/security/CVE-2015-5337
cve.org/CVERecord?id=CVE-2015-5337