Newsletter < 7.4.5 - Reflected Cross-Site Scripting
18Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendepss 1.8%
exploitation probability
1.8%top 24% of all CVEs
observed exploitation
nono source reports it
The Newsletter WordPress plugin before 7.4.5 does not sanitize and escape the $_SERVER['REQUEST_URI'] before echoing it back in admin pages. Although this uses addslashes, and most modern browsers automatically URLEncode requests, this is still vulnerable to Reflected XSS in older browsers such as Internet Explorer 9 or below.
Affected products
Unknown · Newsletter – Send awesome emails from WordPress