CVE-2021-39321

Sassy Social Share 3.3.23 PHP Object Injection

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Version 3.3.23 of the Sassy Social Share WordPress plugin is vulnerable to PHP Object Injection via the wp_ajax_heateor_sss_import_config AJAX action due to deserialization of unvalidated user supplied inputs via the import_config function found in the ~/admin/class-sassy-social-share-admin.php file. This can be exploited by underprivileged authenticated users due to a missing capability check on the import_config function.

La versión 3.3.23 del plugin Sassy Social Share de WordPress es vulnerable a una inyección de objetos de PHP por medio de la acción AJAX wp_ajax_heateor_sss_import_config debido a una deserialización de entradas no validadas por el usuario por medio de la función import_config que se encuentra en el archivo ~/admin/class-sassy-social-share-admin.php. Esto puede ser explotado por usuarios autenticados no privilegiados debido a una falta de comprobación de capacidades en la función import_config

*Credits: Chloe Chamberland, Wordfence

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-20 CVE Reserved
2021-10-21 CVE Published
2024-09-16 CVE Updated
2024-09-16 First Exploit
2024-10-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-502: Deserialization of Untrusted Data
CWE-863: Incorrect Authorization

CAPEC

References (3)

URL	Tag	Source
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321	Third Party Advisory

URL	Date	SRC
https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin	2024-09-16

URL	Date	SRC
https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php	2021-10-25

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Heateor Search vendor "Heateor"		Sassy Social Share Search vendor "Heateor" for product "Sassy Social Share"				3.3.23 Search vendor "Heateor" for product "Sassy Social Share" and version "3.3.23"		wordpress		Affected