8.8
HIGH
CVE-2021-39321
Sassy Social Share WordPress Plugin PHP Object Injection Vulnerability
Description

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.

INFO

Published Date :

Oct. 21, 2021, 8:15 p.m.

Last Modified :

Oct. 25, 2021, 7:58 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-39321 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 Heateor sassy_social_share
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-39321.

URL Resource
https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php Patch Third Party Advisory
https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin/ Exploit Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321 Third Party Advisory

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).

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

The following list is the news that have been mention CVE-2021-39321 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-39321 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
  • Initial Analysis by [email protected]

    Oct. 25, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Changed Reference Type https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php No Types Assigned https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php Patch, Third Party Advisory
    Changed Reference Type https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin/ No Types Assigned https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin/ Exploit, Third Party Advisory
    Changed Reference Type https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321 No Types Assigned https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:heateor:sassy_social_share:3.3.23:*:*:*:*:wordpress:*:*
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-2021-39321 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-2021-39321 weaknesses.

Exploit Prediction

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

0.28 }} -0.01%

score

0.69206

percentile

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