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CVE-2020-36326

Published: Apr 28, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-502
9.8CRITICAL
NVD MITRE
EPSS Score
3.1%
Top 14.0%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

n/an/a
phpmailer/phpmailerPackagistOSS Libraries
phpmailerphpmailer project
Library
OSS Libraries / generic-library
wordpresswordpress
On-premWeb App
Web & CMS Plugins / cms-core
packagistpackage-ecosystemOSS Libraries
phpmailer projectoss-projectOSS Libraries
wordpressoss-projectUSWeb & CMS Pluginsaka wp, wordpress.org, wordpress mu

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9
github.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/
lists.fedoraproject.org
and 6 more references View all →

Timeline

Published
Apr 28, 2021
Last Updated
Nov 21, 2024

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