PT-2025-19342 · WordPress · Newsletters

Dmitry Ignatyev · Published 2025-05-05 · Updated 2025-05-05 · CVE-2025-3583

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 8.7.1

Description The issue concerns the Newsletter WordPress plugin, which does not properly sanitize and escape some of its settings. This could allow high-privilege users, such as administrators, to perform Stored Cross-Site Scripting attacks, even when the unfiltered html capability is disallowed, for example, in a multisite setup.

Recommendations For versions prior to 8.7.1, update to version 8.7.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of the vulnerable settings until a patch is available.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-3583

Affected Products

Newsletters

References · 8

• 🔥 https://wpscan.com/vulnerability/a6582e14-e21e-48e7-9b4c-0044fb199825 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-3583 · Security Note
• https://osv.dev/vulnerability/CVE-2025-3583 · Vendor Advisory
• https://t.me/cvedetector/24441 · Telegram Post
• https://twitter.com/CVEnew/status/1919276508004175977 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1919292363911967219 · Twitter Post
• https://t.me/cvetracker/23032 · Telegram Post
• https://t.me/cvenotify/120770 · Telegram Post