The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsLearn about Cross-site Scripting (XSS) vulnerabilities in an interactive lesson.
Start learningUpgrade Ubuntu:20.04
ruby-sanitize
to version 4.6.6-2.1~0.20.04.2 or higher.
Note: Versions mentioned in the description apply only to the upstream ruby-sanitize
package and not the ruby-sanitize
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:20.04
relevant fixed versions and status.
Sanitize is an allowlist-based HTML and CSS sanitizer. Versions 5.0.0 and later, prior to 6.0.1, are vulnerable to Cross-site Scripting. When Sanitize is configured with a custom allowlist that allows noscript
elements, attackers are able to include arbitrary HTML, resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. The default configurations do not allow noscript
elements and are not vulnerable. This issue only affects users who are using a custom config that adds noscript
to the element allowlist. This issue has been patched in version 6.0.1. Users who are unable to upgrade can prevent this issue by using one of Sanitize's default configs or by ensuring that their custom config does not include noscript
in the element allowlist.