Thales Imperva Securesphere
The issue is related to inadequate access control in the Thales Imperva SecureSphere WAF, allowing remote attackers to bypass WAF rules via crafted POST requests. This could lead to devastating breaches, including SQL injection and cross-site scripting (XSS) attacks. The vulnerability can be exploited by sending a request with specially crafted Content-Encoding headers, such as multiple headers or specific combinations like gzip and deflate. The estimated number of potentially affected devices is not specified.