# HtmlSanitizer (NuGet) vulnerabilities

3 known vulnerabilities (3 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://www.nuget.org/packages/HtmlSanitizer

## Advisories (3)

### [CVE-2026-25543](https://cve.now/CVE-2026-25543): HtmlSanitizer has a bypass via template tag

- Severity: Medium 6.3
- Published: Feb 4, 2026
- Affected: fixed in 9.0.892; from 9.1.878-beta, fixed in 9.1.893-beta.

### [CVE-2023-44390](https://cve.now/CVE-2023-44390): HtmlSanitizer vulnerable to Cross-site Scripting in Foreign Content

- Severity: Medium 6.1
- Published: Oct 5, 2023
- Affected: fixed in 8.0.723; from 8.1.0-beta, fixed in 8.1.722-beta.

### [CVE-2020-26293](https://cve.now/CVE-2020-26293): Possible XSS bypass if style tag is allowed

- Severity: Medium 6.1
- Published: Jan 4, 2021
- Affected: fixed in 5.0.372.

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