Medium severity4.8NVD Advisory· Published Jun 9, 2025· Updated Jun 17, 2026

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).

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Thenewsletterplugin/Newsletter
cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:*
Range: <8.8.5
WordPress/Newsletterllm-fuzzy2 versions
<8.8.5+ 1 more
- (no CPE)range: <8.8.5
- (no CPE)
Package: https://wordpress.org/plugins/newsletter

Patches

Vulnerability mechanics

References

wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/nvdExploitThird Party Advisory

News mentions

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