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cveMitreCVE-2020-36326
HistoryApr 28, 2021 - 3:15 a.m.

CVE-2020-36326

2021-04-2803:15:07
CWE-502
mitre
web.nvd.nist.gov
471
18
cve-2020-36326
phpmailer
object injection
phar deserialization
addattachment
unc pathname
nvd

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

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

AI Score

8.7

Confidence

High

EPSS

0.011

Percentile

84.4%

JSON

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.

Affected configurations

Nvd
Node
phpmailer_projectphpmailerRange6.1.8–6.4.0
Node
wordpresswordpressRange3.7–3.7.36
OR
wordpresswordpressRange3.8–3.8.36
OR
wordpresswordpressRange3.9–3.9.34
OR
wordpresswordpressRange4.0–4.0.33
OR
wordpresswordpressRange4.1–4.1.33
OR
wordpresswordpressRange4.2–4.2.30
OR
wordpresswordpressRange4.3–4.3.26
OR
wordpresswordpressRange4.4–4.4.25
OR
wordpresswordpressRange4.5–4.5.24
OR
wordpresswordpressRange4.6–4.6.21
OR
wordpresswordpressRange4.7–4.7.21
OR
wordpresswordpressRange4.8–4.8.17
OR
wordpresswordpressRange4.9–4.9.18
OR
wordpresswordpressRange5.0–5.0.13
OR
wordpresswordpressRange5.1–5.1.10
OR
wordpresswordpressRange5.2–5.2.11
OR
wordpresswordpressRange5.3–5.3.8
OR
wordpresswordpressRange5.4–5.4.6
OR
wordpresswordpressRange5.5–5.5.5
OR
wordpresswordpressRange5.6–5.6.4
OR
wordpresswordpressRange5.7–5.7.2
VendorProductVersionCPE
phpmailer_projectphpmailer*cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:*
wordpresswordpress*cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

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CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

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

AI Score

8.7

Confidence

High

EPSS

0.011

Percentile

84.4%

JSON
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