CVE-2018-3741

NameCVE-2018-3741
DescriptionThere is a possible XSS vulnerability in all rails-html-sanitizer gem versions below 1.0.4 for Ruby. The gem allows non-whitelisted attributes to be present in sanitized output when input with specially-crafted HTML fragments, and these attributes can lead to an XSS attack on target applications. This issue is similar to CVE-2018-8048 in Loofah. All users running an affected release should either upgrade or use one of the workarounds immediately.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs893994

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby-rails-html-sanitizer (PTS)bullseye1.3.0-1fixed
bullseye (security)1.3.0-1+deb11u1fixed
bookworm, sid, trixie1.4.4-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ruby-rails-html-sanitizersource(unstable)1.0.4-1893994

Notes

[stretch] - ruby-rails-html-sanitizer <no-dsa> (Minor issue; can be fixed via point release)
https://github.com/rails/rails-html-sanitizer/commit/f3ba1a839a35f2ba7f941c15e239a1cb379d56ae
Search for package or bug name: Reporting problems