CVE-2021-4362
The Kiwi Social Share plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the kiwi_social_share_get_option() function called via the kiwi_social_share_get_option AJAX action in version 2.1.0.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Kiwi Social Share plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the kiwi_social_share_get_option() function called via the kiwi_social_share_get_option AJAX action in version 2.1.0. This makes it possible for unauthenticated attackers to read and modify arbitrary options on a WordPress site that can be used for complete site takeover. This was a previously fixed vulnerability that was reintroduced in this version.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.42% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- wpkube/kiwi social share
- Source
- security@wordfence.com
References
- https://blog.nintechnet.com/wordpress-kiwi-social-sharing-plugin-fixed-critical-vulnerability/Exploit
- https://wordpress.org/plugins/kiwi-social-share/#developersProduct
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8148b6d0-190a-4b97-8af7-edd6943116d1?source=cveThird Party Advisory
- https://blog.nintechnet.com/wordpress-kiwi-social-sharing-plugin-fixed-critical-vulnerability/Exploit
- https://wordpress.org/plugins/kiwi-social-share/#developersProduct
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8148b6d0-190a-4b97-8af7-edd6943116d1?source=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.