WordPress SendPress Newsletters Plugin <= is vulnerable to Cross Site Scripting (XSS)

Patch priority: medium
Medium priority vPatch available
Vulnerable version
<= Vulnerable version
Not fixed
No official fix available Fixed version

07 November 2023 by Patchstack


CVSS 7.1

This vulnerability is moderately dangerous and expected to become exploited.


Cross Site Scripting (XSS)

This could allow a malicious actor to inject malicious scripts, such as redirects, advertisements, and other HTML payloads into your website which will be executed when guests visit your site.

This is a general description of this vulnerability type, specific impact varies case by case. CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way, but it is not ideal for WordPress.


We advise to mitigate or resolve the vulnerability immediately.


Have additional information or questions about this entry? Let us know.


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Reported by

Le Ngoc Anh Le Ngoc Anh
19 Apr 2023
Early warning sent out

Early warning sent out to Patchstack customers

07 Nov 2023
Published by Patchstack

Published by Patchstack

09 Nov 2023

Over 70% of all known WordPress vulnerabilities were originally published by Patchstack in 2023 and hundreds of popular plugins such as Elementor, RankMath and WProcket have set Patchstack as their official security partner.

Patchstack vPatching auto-mitigates security vulnerabilities even when there's no official patch available. It's the fastest and most effective way to eliminate new security vulnerabilities without sacrificing performance.

Hackers automate attacks against new security vulnerabilities to take over as many websites as they can before users have time to patch and update. The attacks are opportunistic and victims are not chosen - everyone is a target.

We recommend reaching out to your hosting provider for server-side malware scanning or use a professional incident response service. Don't rely on plugin based malware scanners as they are commonly tampered with by malware.

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