4.8
Medium
CVE-2025-3581 The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before…
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Newsletter 8.8 | earliest → < 8.8.5 | 8.8.5 |
Other CVEs of Newsletter
The 6 CVEs of Newsletter →
CVE-2026-86824
The Newsletter WordPress plugin before 9.3.8 does not generate its email tracking signing key with sufficient entropy…
4.8
Medium
CVE-2026-86823
The Newsletter WordPress plugin before 9.3.7 does not validate the destination of the redirect performed after a public…
5.3
Medium
CVE-2025-3582
The Newsletter WordPress plugin before 8.85 does not sanitise and escape some of its Form settings, which could allow…
4.8
Medium
CVE-2025-3584
The Newsletter WordPress plugin before 8.8.2 does not sanitise and escape some of its Subscription settings, which…
4.8
Medium