| Name | CVE-2019-20041 |
| Description | wp_kses_bad_protocol in wp-includes/kses.php in WordPress before 5.3.1 mishandles the HTML5 colon named entity, allowing attackers to bypass input sanitization, as demonstrated by the javascript: substring. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2067-1, DSA-4599-1 |
| Debian Bugs | 946905 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| wordpress (PTS) | jessie, jessie (lts) | 4.1.35+dfsg-0+deb8u1 | fixed |
| stretch (security), stretch (lts), stretch | 4.7.23+dfsg-0+deb9u1 | fixed |
| buster | 5.0.15+dfsg1-0+deb10u1 | fixed |
| buster (security) | 5.0.21+dfsg1-0+deb10u1 | fixed |
| bullseye (security), bullseye | 5.7.8+dfsg1-0+deb11u2 | fixed |
| bookworm | 6.1.1+dfsg1-1 | fixed |
| trixie | 6.5+dfsg1-1 | fixed |
| sid | 6.5.2+dfsg1-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/