CVE-2021-21707

2021-11-2317:18:07

redhat.com

access.redhat.com

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

44.3%

JSON

A flaw was found in php. The main cause of this vulnerability is improper input validation while parsing an Extensible Markup Language(XML) entity. A special character could allow an attacker to traverse directories. The highest threat from this vulnerability is confidentiality.