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ubuntucveUbuntu.comUB:CVE-2020-36326
HistoryApr 28, 2021 - 12:00 a.m.

CVE-2020-36326

2021-04-2800:00:00
ubuntu.com
ubuntu.com
15

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.007 Low

EPSS

Percentile

80.5%

PHPMailer 6.1.8 through 6.4.0 allows object injection through Phar
Deserialization via addAttachment with a UNC pathname. NOTE: this is
similar to CVE-2018-19296, but arose because 6.1.8 fixed a functionality
problem in which UNC pathnames were always considered unreadable by
PHPMailer, even in safe contexts. As an unintended side effect, this fix
eliminated the code that blocked addAttachment exploitation.

Notes

Author Note
ccdm94 this vulnerability was introduced by commit e2e07a35 (v6.1.8).

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.007 Low

EPSS

Percentile

80.5%

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