CVE-2021-39321

HIGH

Heateor Sassy Social Share - Incorrect Authorization

Title source: rule

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.

References (3)

[Patch, Third Party Advisory] https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php

[Exploit, Third Party Advisory] https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin/

[Third Party Advisory] https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321

Scores

CVSS v3 8.8

EPSS 0.0154

EPSS Percentile 81.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-502 CWE-863

Status published

Affected Products (1)

heateor/sassy_social_share

Timeline

Published Oct 21, 2021

Tracked Since Feb 18, 2026