lettersanitizer Denial of Service Vulnerability

lettersanitizer is a DOM-based HTML email cleaner for in-browser email rendering. A denial of service vulnerability exists in lettersanitizer versions prior to 1.0.2. The vulnerability stems from a failure to properly handle incoming error messages and can be exploited by an attacker to cause a...

CVE-2022-31103 Improper handling of CSS at-rules in lettersanitizer

lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule @keyframes. This package is depended on by react-letter, therefore everyone using react-letter is...