CVE-2021-39321
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.04%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.04% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502, CWE-863
- Affected
- heateor/sassy social share
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.phpPatch, 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-2021-39321Third Party Advisory
- https://plugins.trac.wordpress.org/changeset/2600464/sassy-social-share/trunk/admin/class-sassy-social-share-admin.phpPatch, 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-2021-39321Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.