vulnerability
WordPress Plugin: official-mailerlite-sign-up-forms: CVE-2025-13993: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:M/C:P/I:P/A:N) | Dec 11, 2025 | Dec 12, 2025 | Dec 15, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:M/C:P/I:P/A:N)
Published
Dec 11, 2025
Added
Dec 12, 2025
Modified
Dec 15, 2025
Description
The MailerLite – Signup forms (official) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_description' and 'success_message' parameters in versions up to, and including, 1.7.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator access or higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Solution
official-mailerlite-sign-up-forms-plugin-cve-2025-13993
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