WordPress Constant Contact Forms by MailMunch Plugin <= 2.0.11 is vulnerable to Cross Site Scripting (XSS)
Risks
CVSS 6.5
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.
Solutions
This security issue has a low severity impact and is unlikely to be exploited.
Update to version 2.1.0 or later.
Update to version 2.1.0 or later to remove the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.
Timeline
Reported by
Khalid Yusuf
Early warning sent out to Patchstack customers
10 Jan 2024
Published by Patchstack
12 Jan 2024
Plugin page
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.
