PT-2025-23586 · WordPress · The Newsletter

Dmitry Ignatyev · Published 2025-06-03 · Updated 2025-06-05 · CVE-2025-3584

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions The Newsletter WordPress plugin versions prior to 8.8.2

Description The issue allows high privilege users, such as admins, to perform Stored Cross-Site Scripting attacks, even when the unfiltered html capability is disallowed, for example, in multisite setups. This is due to the plugin not sanitizing and escaping some of its Subscription settings.

Recommendations For versions prior to 8.8.2, update to version 8.8.2 to resolve the issue. As a temporary workaround, consider restricting access to the Subscription settings to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-3584

Affected Products

The Newsletter

References · 7

• 🔥 https://wpscan.com/vulnerability/76937bdd-7ffa-4b5e-ade1-60da095a03a3 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-3584 · Security Note
• https://osv.dev/vulnerability/CVE-2025-3584 · Vendor Advisory
• https://twitter.com/fernandokarl/status/1929804628385742932 · Twitter Post
• https://twitter.com/CVEnew/status/1929785816538046712 · Twitter Post
• https://t.me/cvetracker/25249 · Telegram Post
• https://twitter.com/dailycve/status/1930644664631144504 · Twitter Post