VULNERABILITY INTELLIGENCE
CVE-2025-13993
CVSS score5.5 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2025-12-12
Last modified2026-10-07
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
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.
Weakness classification
- security@wordfence.com: CWE-79