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CVE-2019-3810

Moodle XSS Vulnerability

4.3 MediumPublic exploitFix available

CVE-2019-3810 is a medium vulnerability (CVSS 4.3) in [unknown] Moodle, published March 25, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 13.8%, the 96th percentile. Fixed in moodle/moodle 3.6.1.

What does this mean?
Severity
4.3 MediumCVSS 3.0, CVE List
Exploit chance
13.8%EPSS, 96th percentile
Exploitation
None known2 public exploits
Fixed in
3.6.1moodle/moodle +9 more

Description

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
None

Exploit likelihood

13.8%Up 13.0 points since Apr 14, 2021
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
moodle/moodle
Packagist
3.6.0 up to 3.6.1
3.6.1
moodle/moodle
Packagist
3.5.0 up to 3.5.3
3.5.3
moodle/moodle
Packagist
3.4.0 up to 3.4.6
3.4.6
moodle/moodle
Packagist
3.1.0 up to 3.1.15
3.1.15
moodle/moodle
Packagist
3.6.0 up to 3.6.1, plus listed versions
v3.6.0
3.6.1
moodle/moodle
Packagist
3.5.0 up to 3.5.3, plus listed versions
v3.5.0v3.5.1v3.5.2
3.5.3
moodle/moodle
Packagist
3.4.0 up to 3.4.6, plus listed versions
v3.4.0v3.4.1v3.4.2v3.4.3v3.4.4v3.4.5
3.4.6
moodle/moodle
Packagist
3.1.0 up to 3.1.15, plus listed versions
v3.1.0v3.1.1v3.1.10v3.1.11v3.1.12
Show 10 moreShow less
v3.1.13v3.1.14v3.1.2v3.1.3v3.1.4v3.1.5v3.1.6v3.1.7v3.1.8v3.1.9
3.1.15
moodle
Ubuntu: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
moodle
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1
None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubfarisv/Moodle-CVE-2019-38102021-04-29
Exploit-DBMoodle 3.6.1 - Persistent Cross-Site Scripting (XSS)2021-04-30

What each source reports

CVE List Score used4.3

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
CVE-2019-3810
CVSS 3.0
4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2022-55914.3

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
EUVD-2022-5591
CVSS 3.0
4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-wm4w-8vc6-2j4h5.3

Moodle XSS Vulnerability

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
GHSA-wm4w-8vc6-2j4h
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD6.1

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
CVE-2019-3810
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 3.0
4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV6.1

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
CVE-2019-3810
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVGHSA-wm4w-8vc6-2j4h5.3

Moodle XSS Vulnerability

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
GHSA-wm4w-8vc6-2j4h
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVUBUNTU-CVE-2019-38106.1

A flaw was found in moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The /userpix/ page did not escape users' full names, which are included as text when hovering over profile images. Note this page is not linked to by default and its access is restricted.

Record
UBUNTU-CVE-2019-3810
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 3.0
4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02

History

History
RecordedChangedSources
exploits, facts
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub

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

References

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