CVE-2025-3583

Name: CVE-2025-3583
Creator: NVD / NIST
Published: 2025-05-05T06:15:31.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2025-3583 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The Newsletter WordPress plugin before 8.7.1 does not sanitise and escape some of its settings, 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).. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

The Newsletter WordPress plugin before 8.7.1 does not sanitise and escape some of its settings, 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).

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.27%

19.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Thenewsletterplugin	Newsletter	< 8.7.1

References

https://wpscan.com/vulnerability/a6582e14-e21e-48e7-9b4c-0044fb199825/Exploit, Third Party Advisory

Timeline

Published: May 5, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-3583?

How severe is CVE-2025-3583?

CVE-2025-3583 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2025-3583?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-3583?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST