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ubuntucveUbuntu.comUB:CVE-2021-20280
HistoryMar 15, 2021 - 12:00 a.m.

CVE-2021-20280

2021-03-1500:00:00
ubuntu.com
ubuntu.com
18
moodle feedback sanitizing
stored xss
blind ssrf
version 3.10.2
version 3.9.5
version 3.8.8
version 3.5.17
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

0.003

Percentile

69.2%

JSON

Text-based feedback answers required additional sanitizing to prevent
stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8,
3.5.17.

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

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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

0.003

Percentile

69.2%

JSON
Related for UB:CVE-2021-20280
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