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.
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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. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML and CSS through Sanitize starting with version 3.0.0 and prior to version 6.0.2 when Sanitize is configured to use the built-in "relaxed" config or when using a custom config that allows style
elements and one or more CSS at-rules. This could result in cross-site scripting or other undesired behavior when the malicious HTML and CSS are rendered in a browser. Sanitize 6.0.2 performs additional escaping of CSS in style
element content, which fixes this issue. Users who are unable to upgrade can prevent this issue by using a Sanitize config that doesn't allow style
elements, using a Sanitize config that doesn't allow CSS at-rules, or by manually escaping the character sequence </
as <\/
in style
element content.