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CVE-2025-3581

MEDIUM 4.8 CVSS 3.1
Published
June 9, 2025
Last modified
June 17, 2026
NVD status
Analyzed
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Description

The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Newsletter — Before 8.8.5
  • thenewsletterplugin newsletter — Before 8.8.5

References

  • wpscan.com https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/ Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record