Vulnerability Description
Due to the lack of sanitization and lack of nonce protection on the custom CSS feature, an attacker could craft a request to inject malicious JavaScript on a site using the Contact Form 7 Style WordPress plugin through 3.1.9. If an attacker successfully tricked a site’s administrator into clicking a link or attachment, then the request could be sent and the CSS settings would be successfully updated to include malicious JavaScript.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rocklobster | Contact Form 7 | <= 3.1.9 |
Related Weaknesses (CWE)
References
- https://wpscan.com/vulnerability/363182f1-9fda-4363-8f6a-be37c4c07aa9Third Party Advisory
- https://www.wordfence.com/blog/2021/02/unpatched-vulnerability-50000-wp-sites-muThird Party Advisory
- https://wpscan.com/vulnerability/363182f1-9fda-4363-8f6a-be37c4c07aa9Third Party Advisory
- https://www.wordfence.com/blog/2021/02/unpatched-vulnerability-50000-wp-sites-muThird Party Advisory
FAQ
What is CVE-2021-24159?
CVE-2021-24159 is a vulnerability with a CVSS score of 8.8 (HIGH). Due to the lack of sanitization and lack of nonce protection on the custom CSS feature, an attacker could craft a request to inject malicious JavaScript on a site using the Contact Form 7 Style WordPr...
How severe is CVE-2021-24159?
CVE-2021-24159 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-24159?
Check the references section above for vendor advisories and patch information. Affected products include: Rocklobster Contact Form 7.