CVE-2025-3581

Public Exploit
Newsletter < 8.8.5 - Admin+ Stored XSS via Widget

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).

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory wpscan.com
Affected: Unknown Newsletter
Published at:
Updated at:

References

Link Tags
https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/ exploit technical description vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2025-3581?
CVE-2025-3581 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3581?
To fix CVE-2025-3581, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3581 being actively exploited in the wild?
It is possible that CVE-2025-3581 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3581?
CVE-2025-3581 affects Unknown Newsletter.
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