vulnerability
WordPress Plugin: smtp2go: CVE-2023-28496: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:M/C:P/I:P/A:N) | Mar 16, 2023 | May 15, 2025 | May 5, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:M/C:P/I:P/A:N)
Published
Mar 16, 2023
Added
May 15, 2025
Modified
May 5, 2026
Description
The SMTP2GO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘[function_or_param]’ parameter in versions up to, and including, 1.4.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrator-level access, and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.
Solution
smtp2go-plugin-cve-2023-28496
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.