CVE-2021-4350

Public Exploit

Description

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated HTML Injection in versions up to, and including, 18.2. This is due to lacking authentication protections on the wpfm_send_file_in_email AJAX action. This makes it possible for unauthenticated attackers to send emails using the site with a custom subject, recipient email, and body with unsanitized HTML content. This effectively lets the attacker use the site as a spam relay.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.10%
Third-Party Advisory wordfence.com
Affected: nmedia Frontend File Manager Plugin
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-4350?
CVE-2021-4350 has been scored as a high severity vulnerability.
How to fix CVE-2021-4350?
To fix CVE-2021-4350, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4350 being actively exploited in the wild?
It is possible that CVE-2021-4350 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4350?
CVE-2021-4350 affects nmedia Frontend File Manager Plugin.
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