CVE-2021-39321

Public Exploit
Sassy Social Share 3.3.23 PHP Object Injection

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.

Remediation

Solution:

  • Update to version 3.3.24

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.87% Top 30%
Third-Party Advisory wordpress.org Third-Party Advisory wordfence.com Third-Party Advisory wordfence.com
Affected: Sassy Social Share Sassy Social Share
Published at:
Updated at:

References

Link Tags
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39321 third party advisory
https://www.wordfence.com/blog/2021/10/vulnerability-patched-in-sassy-social-share-plugin/ third party advisory exploit
https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.php third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-39321?
CVE-2021-39321 has been scored as a high severity vulnerability.
How to fix CVE-2021-39321?
To fix CVE-2021-39321: Update to version 3.3.24
Is CVE-2021-39321 being actively exploited in the wild?
It is possible that CVE-2021-39321 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39321?
CVE-2021-39321 affects Sassy Social Share Sassy Social Share.
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