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CVE-2021-39321

HIGH 8.8 CVSS 3.1
Published
October 21, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-502, CWE-863
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Sassy Social Share Sassy Social Share — Version 3.3.23
  • heateor sassy_social_share — Version 3.3.23

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php Patch, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin/ Exploit, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321 Third Party Advisory
  • nvd.nist.gov Official NVD record