CVE-2021-4421: CSRF
First published: Wed Jul 12 2023(Updated: )
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.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ashstonestudios Advanced Popups | <=1.1.1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2548724%40advanced-popups&new=2548724%40advanced-popups&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/dc7b51e5-6eb7-41ba-add3-f083fb34c5e1?source=cve
Frequently Asked Questions
What is the severity of CVE-2021-4421?
CVE-2021-4421 has a medium severity level due to potential Cross-Site Request Forgery vulnerabilities.
How do I fix CVE-2021-4421?
To fix CVE-2021-4421, update the Advanced Popups plugin to version 1.1.2 or later.
Who is affected by CVE-2021-4421?
Users of the Advanced Popups WordPress plugin prior to version 1.1.2 are at risk of CVE-2021-4421.
What type of attack does CVE-2021-4421 allow?
CVE-2021-4421 allows unauthenticated attackers to execute Cross-Site Request Forgery attacks.
What versions of the Advanced Popups plugin are impacted by CVE-2021-4421?
All versions of the Advanced Popups plugin up to and including 1.1.1 are impacted by CVE-2021-4421.
- collector/nvd-index
- agent/author
- agent/type
- agent/softwarecombine
- agent/references
- agent/weakness
- agent/remedy
- agent/severity
- agent/description
- agent/first-publish-date
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/tags
- collector/nvd-latest
- agent/software-canonical-lookup-request
- collector/nvd-api
- vendor/ashstonestudios
- canonical/ashstonestudios advanced popups
- version/ashstonestudios advanced popups/1.1.1