CVE-2025-3581: 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…

PriorityP419medium4.8CVSS 3.1

AVNACLPRHUIRSCCLILAN

EPSS

0.22%

12.4th percentile

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

1 ranges

Vendor	Product	Version range	Fixed in
thenewsletterplugin	newsletter	< 8.8.5	8.8.5

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