CVE-2019-20041
published 2019-12-27CVE-2019-20041: 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…
PriorityP351critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
4.59%
90.6th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | wordpress | < wordpress 5.3.2+dfsg1-1 (bookworm) | wordpress 5.3.2+dfsg1-1 (bookworm) |
| wordpress | wordpress | < 5.3.1 | 5.3.1 |
| wordpress | wordpress | >= 0 < 5.3.2+dfsg1-1 | 5.3.2+dfsg1-1 |
| wordpress | wordpress | >= 0 < 5.3.2+dfsg1-1 | 5.3.2+dfsg1-1 |
| wordpress | wordpress | >= 0 < 5.3.2+dfsg1-1 | 5.3.2+dfsg1-1 |
| wordpress | wordpress | >= 0 < 5.3.2+dfsg1-1 | 5.3.2+dfsg1-1 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8CRITICAL
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Debian
CVE-2019-20041: wordpress - wp_kses_bad_protocol in wp-includes/kses.php in WordPress before 5.3.1 mishandle...
vendor_debian·2019·CVSS 9.8
CVE-2019-20041 [CRITICAL] CVE-2019-20041: wordpress - wp_kses_bad_protocol in wp-includes/kses.php in WordPress before 5.3.1 mishandle...
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.
Scope: local
bookworm: resolved (fixed in 5.3.2+dfsg1-1)
bullseye: resolved (fixed in 5.3.2+dfsg1-1)
forky: resolved (fixed in 5.3.2+dfsg1-1)
sid: resolved (fixed in 5.3.2+dfsg1-1)
trixie: resolved (fixed in 5.3.2+dfsg1-1)
GHSA
GHSA-8j68-mq56-8vpm: wp_kses_bad_protocol in wp-includes/kses
ghsa_unreviewed·2022-05-24
CVE-2019-20041 [CRITICAL] CWE-20 GHSA-8j68-mq56-8vpm: wp_kses_bad_protocol in wp-includes/kses
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.
OSV
CVE-2019-20041: wp_kses_bad_protocol in wp-includes/kses
osv·2019-12-27·CVSS 9.8
CVE-2019-20041 [CRITICAL] CVE-2019-20041: wp_kses_bad_protocol in wp-includes/kses
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization [epel-7]
bugzilla·2020-01-21·CVSS 9.8
CVE-2019-20041 [CRITICAL] CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization [epel-7]
CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpk
Bugzilla
CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization
bugzilla·2020-01-21·CVSS 9.8
CVE-2019-20041 [CRITICAL] CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization
CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization
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.
Reference and upstream commit:
https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53
Discussion:
Created wordpress tracking bugs for this issue:
Affects: epel-6 [bug 1793630]
Affects: epel-7 [bug 1793631]
Bugzilla
CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization [epel-6]
bugzilla·2020-01-21·CVSS 9.8
CVE-2019-20041 [CRITICAL] CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization [epel-6]
CVE-2019-20041 wordpress: HTML5 colon named entity mishandling in wp_kses_bad_protocol in wp-includes/kses.php allows bypass input sanitization [epel-6]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-6.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpk
https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53https://lists.debian.org/debian-lts-announce/2020/01/msg00010.htmlhttps://seclists.org/bugtraq/2020/Jan/8https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/https://www.debian.org/security/2020/dsa-4599https://www.debian.org/security/2020/dsa-4677https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53https://lists.debian.org/debian-lts-announce/2020/01/msg00010.htmlhttps://seclists.org/bugtraq/2020/Jan/8https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/https://www.debian.org/security/2020/dsa-4599https://www.debian.org/security/2020/dsa-4677
2019-12-27
Published