Medium severity · published Jul 12, 2023
CVE-2023-3087
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…
6.1
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
Fluentsmtp · Wpmanageninja
before 2.2.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3087
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3087
Patch
https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Models/Logger.php
Patch
https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Services/Mailer/BaseHandler.php
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/fa47a794-e5ce-491d-a10b-c7c5718aa853?source=cve
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