CVE-2021-4387
The Opal Estate plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.6.11.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Opal Estate plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.6.11. This is due to missing or incorrect nonce validation on the opalestate_set_feature_property() and opalestate_remove_feature_property() functions. This makes it possible for unauthenticated attackers to set and remove featured properties via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.58% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- wpopal/opal estate
- Source
- security@wordfence.com
References
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/Exploit, Third Party Advisory
- https://plugins.trac.wordpress.org/browser/opal-estate/trunk/inc/ajax-functions.php#L177Not Applicable
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2645899c-2b6b-48bd-8f33-2a837a951c5e?source=cveThird Party Advisory
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Third Party Advisory
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/Third Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/Exploit, Third Party Advisory
- https://plugins.trac.wordpress.org/browser/opal-estate/trunk/inc/ajax-functions.php#L177Not Applicable
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2645899c-2b6b-48bd-8f33-2a837a951c5e?source=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.