Vulnerability Description
The Advanced Popups plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.1. This is due to missing or incorrect nonce validation on the metabox_popup_save() function. This makes it possible for unauthenticated attackers to save meta tags via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ashstonestudios | Advanced Popups | <= 1.1.1 |
Related Weaknesses (CWE)
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-csrfThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&oldPatch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/dc7b51e5-6eb7-41ba-addThird 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-csrfThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
FAQ
What is CVE-2021-4421?
CVE-2021-4421 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The Advanced Popups plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.1. This is due to missing or incorrect nonce validation on the metabox_popup_...
How severe is CVE-2021-4421?
CVE-2021-4421 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-4421?
Check the references section above for vendor advisories and patch information. Affected products include: Ashstonestudios Advanced Popups.