description: In haml versions prior to version 5.0.0.beta.2, when using user input to perform tasks on the server, characters like < > " ' must be escaped properly. In this case, the ' character was missed. An attacker can manipulate the input to introduce additional attributes, potentially executing code.
problem types: Cross-site Scripting (XSS)
affected:
{
product: haml
vendor: http://haml.info/
versions:
status: affected, version: All versions prior to version 5.0.0.beta.2
}