CVE-2025-3581

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).

PUBLISHED Reserved 2025-04-14 | Published 2025-06-09 | Updated 2025-06-10 | Assigner WPScan

Problem types

CWE-79 Cross-Site Scripting (XSS)

Product status

Credits

Dmitrii Ignatyev finder

WPScan coordinator

References

wpscan.com/...rability/2d96f018-510d-40ab-9e73-76fa44784813/ exploit

wpscan.com/...rability/2d96f018-510d-40ab-9e73-76fa44784813/ exploit vdb-entry technical-description

cve.org (CVE-2025-3581)

nvd.nist.gov (CVE-2025-3581)

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