Vulnerability Details : CVE-2020-36326

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.

Published 2021-04-28 03:15:07

Updated 2021-06-14 15:17:12

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2020-36326

Probability of exploitation activity in the next 30 days: 0.30%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 66 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2020-36326

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-36326

CWE-502 Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

Assigned by: [email protected] (Primary)

References for CVE-2020-36326

https://lists.fedoraproject.org/archives/list/[email protected]/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/

Third Party Advisory

CVEs referencing this url
https://lists.fedoraproject.org/archives/list/[email protected]/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/

Third Party Advisory

CVEs referencing this url
https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9

Patch;Third Party Advisory

Products affected by CVE-2020-36326

Wordpress » Wordpress
Versions from including (>=) 4.1 and before (<) 4.1.33
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.8 and before (<) 4.8.17
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.5 and before (<) 5.5.5
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 3.9 and before (<) 3.9.34
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 3.7 and before (<) 3.7.36
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.9 and before (<) 4.9.18
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.4 and before (<) 5.4.6
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.6 and before (<) 5.6.4
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.1 and before (<) 5.1.10
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.2 and before (<) 4.2.30
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.2 and before (<) 5.2.11
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.3 and before (<) 5.3.8
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.4 and before (<) 4.4.25
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.6 and before (<) 4.6.21
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 3.8 and before (<) 3.8.36
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.7 and before (<) 4.7.21
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.3 and before (<) 4.3.26
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.0 and before (<) 5.0.13
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.5 and before (<) 4.5.24
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 5.7 and before (<) 5.7.2
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Wordpress » Wordpress
Versions from including (>=) 4.0 and before (<) 4.0.33
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions
Phpmailer Project » Phpmailer
Versions from including (>=) 6.1.8 and up to, including, (<=) 6.4.0
cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:*
Matching versions