CVE-2020-26293
Description
HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. In HtmlSanitizer before version 5.0.372, there is a possible XSS bypass if style tag is allowed. If you have explicitly allowed the \<style\> tag, an attacker could craft HTML that includes script after passing through the sanitizer. The default settings disallow the \<style\> tag so there is no risk if you have not explicitly allowed the \<style\> tag. The problem has been fixed in version 5.0.372.
- CVSS Version 3.1
- CVSS Version 2.0
nvd
CVE ID: CVE-2020-26293
Base Score: 6.1
Base Severity: MEDIUM
Vector String:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.8
github
CVE ID: CVE-2020-26293
Base Score: 6.1
Base Severity: MEDIUM
Vector String:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
Impact Score: 4.0
Exploitability Score: 1.6
nvd
CVE ID: CVE-2020-26293
Base Score: 4.3
Base Severity: MEDIUM
Vector String:AV:N/AC:M/Au:N/C:N/I:P/A:N