Medium · published December 28, 2020
CVSS calls it medium at 6.1. It is confirmed in active exploitation. It sits in the 98.4th percentile for exploit probability.
⚠️ A plain text email can be a hidden trap! An attacker can slip JavaScript into Roundcube Webmail, exploiting a flaw that mishandles link references — like a sneaky chef slipping a mystery ingredient into your food! Think of it like a restaurant where the chef has access to your order without anyone checking the ingredients — one wrong substitution could ruin your meal. This XSS vulnerability lets an attacker inject scripts just through an email link, causing chaos without a second glance! If successfully exploited, the attacker could run scripts in the context of the user, which could lead to unauthorized access, data theft, or even more malicious actions. It's like someone in your dining room pretending to be a trustworthy guest while rifling through your belongings!
Think of it like a restaurant where the chef has access to your order without anyone checking the ingredients — one wrong substitution could ruin your meal. This XSS vulnerability lets an attacker inject scripts just through an email link, causing chaos without a second glance! This XSS vulnerability in Roundcube Webmail allows an attacker to send a crafted email containing JavaScript that executes when the victim interacts with the email, thanks to improper handling in the rcube_string_replacer.php function.
If successfully exploited, the attacker could run scripts in the context of the user, which could lead to unauthorized access, data theft, or even more malicious actions. It's like someone in your dining room pretending to be a trustworthy guest while rifling through your belongings! You should upgrade to Roundcube Webmail versions 1.2.13, 1.3.16, or 1.4.10 to patch this vulnerability. Additionally, consider implementing security measures like email filtering to catch suspicious content before it reaches users. You've got this! With a quick patch and some preventative measures, you can keep your email safe from these crafty tricks! 🛡️