CVEvulnerability
CVE-2019-20041
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2019-12-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-20
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.
Affected configurations
• wordpress wordpress (< 5.3.1)
• debian debian linux 8.0
• debian debian linux 9.0
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53 Patch
- https://lists.debian.org/debian-lts-announce/2020/01/msg00010.html Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2020/Jan/8 Mailing List, Third Party Advisory
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/ Release Notes, Vendor Advisory
- https://www.debian.org/security/2020/dsa-4599 Third Party Advisory
- https://www.debian.org/security/2020/dsa-4677 Third Party Advisory
- https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53 Patch
- https://lists.debian.org/debian-lts-announce/2020/01/msg00010.html Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2020/Jan/8 Mailing List, Third Party Advisory
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/ Release Notes, Vendor Advisory
- https://www.debian.org/security/2020/dsa-4599 Third Party Advisory
- https://www.debian.org/security/2020/dsa-4677 Third Party Advisory