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ubuntucveUbuntu.comUB:CVE-2021-20279
HistoryMar 15, 2021 - 12:00 a.m.

CVE-2021-20279

2021-03-1500:00:00
ubuntu.com
ubuntu.com
19
xss prevention
moodle
user profile
sanitization
cve-2021-20279
unix

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

33.0%

The ID number user profile field required additional sanitizing to prevent
a stored XSS risk in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchmoodle< anyUNKNOWN
ubuntu16.04noarchmoodle< anyUNKNOWN

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.001

Percentile

33.0%