9.8
CRITICAL
CVE-2020-36326
PHPMailer Phar Deserialization Object Injection
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.

INFO

Published Date :

April 28, 2021, 3:15 a.m.

Last Modified :

Nov. 7, 2023, 3:22 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-36326 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-36326 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Wordpress wordpress
1 Phpmailer_project phpmailer
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

WordPress Pen Testing

Updated: 3 months, 1 week ago
3 stars 0 fork 0 watcher
Born at : Oct. 23, 2022, 8:42 p.m. This repo has been linked 100 different CVEs too.

Trivy example module for WordPress

Go

Updated: 2 years, 4 months ago
5 stars 1 fork 1 watcher
Born at : June 15, 2022, 1:07 p.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-36326 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-36326 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/
  • Reanalysis by [email protected]

    Jun. 14, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (including) 5.7 OR *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (excluding) 3.7.36 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.8 up to (excluding) 3.8.36 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.9 up to (excluding) 3.9.34 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (excluding) 4.0.33 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.1 up to (excluding) 4.1.33 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.2 up to (excluding) 4.2.30 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.3 up to (excluding) 4.3.26 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.4 up to (excluding) 4.4.25 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.5.24 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.6 up to (excluding) 4.6.21 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.7 up to (excluding) 4.7.21 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.8 up to (excluding) 4.8.17 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 4.9 up to (excluding) 4.9.18 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.0 up to (excluding) 5.0.13 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.1.10 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.2.11 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.3.8 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.4.6 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.5.5 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.6 up to (excluding) 5.6.4 *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 5.7 up to (excluding) 5.7.2
  • Reanalysis by [email protected]

    May. 21, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (including) 5.7.0 OR *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (including) 5.7
  • Modified Analysis by [email protected]

    May. 18, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (including) 5.7.0
  • CVE Modified by [email protected]

    May. 12, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/ [No Types Assigned]
  • CVE Modified by [email protected]

    May. 12, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/ [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 07, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9 No Types Assigned https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9 Patch, Third Party Advisory
    Added CWE NIST CWE-502
    Added CPE Configuration OR *cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:* versions from (including) 6.1.8 up to (including) 6.4.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-36326 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-36326 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.06 }} 0.31%

score

0.84353

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability