The FluentSMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an email subject in versions up to, and including, 2.2.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Wpmanageninja Fluentsmtp
cpe:2.3:a:wpmanageninja:fluentsmtp:*:*:*:*:*:wordpress:*:*
|
— |
2.2.5
|
References 3
https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Mode…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Serv…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/fa47a794-e5ce-491d-a1…
security@wordfence.com