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Vulnerability Database · NuGet · Package report

HtmlSanitizer: vulnerability history, versions and safety

HtmlSanitizer is a package in the NuGet ecosystem. Vulert records 3 vulnerabilities for it across 99 releases, from Jan 2021 to Feb 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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3 vulnerabilities recorded M2 L1
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0 with no fix published

Every vulnerability has a patched version to move to.

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1 in the last 12 months

Most recent disclosure 03 Feb 2026.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all HtmlSanitizer vulnerabilities

Vulert verdict on HtmlSanitizer 9.2.1039 i

Updated on 23 Oct 2026

Good news: 9.2.1039, the version you would install today, has no known vulnerabilities. Older releases do — the table below lists all 3.

Package health score 80/100
  • Security Minor issues
  • Maintenance Sustainable
  • Popularity Widely used
  • Community Quiet

What to do: Stay on 9.2.1039 or newer. This can change: a vulnerability disclosed tomorrow can affect 9.2.1039 too — Vulert watches the package and alerts you if that happens. Monitor it with Vulert →

  • Current release 9.2.1039 — unaffected i
  • Vulnerabilities on record 3 over 5 years · 1 in the last year i
  • Latest disclosure 03 Feb 2026 i
  • Highest CVSS 6.3 i
  • With no published fix 0 i
  • Stars 1,709 i
  • OpenSSF scorecard 4/10 i
  • Last release 1 month ago i
  • Licence MIT i

Version list, release dates, licence and dependants published by NuGet, refreshed 22 Oct 2026. Licence information is not legal advice.

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01 Versions

Which versions are affected

Every version Vulert tracks for HtmlSanitizer, newest first, with the vulnerabilities recorded against each one. A version showing none has no vulnerability in the Vulert database — open it for the full picture on that release.

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Version Released Vulert vulnerabilities Licence Fix published Details
10.0.1102-beta 21 Oct 2026 none MIT — Details →
10.0.1075-beta 01 Oct 2026 none MIT — Details →
9.2.1039 28 Aug 2026 none MIT — Details →
10.0.1037-beta 27 Aug 2026 none MIT — Details →
9.2.995 10 Aug 2026 none MIT — Details →
9.1.982 03 Aug 2026 none MIT — Details →
9.1.981 03 Aug 2026 none MIT — Details →
9.1.974 30 Jul 2026 none MIT — Details →
9.1.973 27 Jul 2026 none MIT — Details →
9.1.968-beta 21 Jul 2026 none MIT — Details →
9.0.967 21 Jul 2026 none MIT — Details →
9.1.966-beta 20 Jul 2026 none MIT — Details →
9.1.949-beta 19 Jun 2026 none MIT — Details →
9.1.923-beta 27 Apr 2026 none MIT — Details →
9.1.893-beta 02 Feb 2026 none MIT — Details →
9.0.892 02 Feb 2026 none MIT — Details →
9.1.891-beta 24 Nov 2025 none MIT — Details →
9.0.889 24 Nov 2025 M1 MIT Yes Details →
9.1.887-beta 12 Jun 2025 none MIT — Details →
9.0.886 12 Jun 2025 M1 MIT Yes Details →
9.1.885-beta 21 Apr 2025 none MIT — Details →
9.0.884 21 Apr 2025 M1 MIT Yes Details →
9.1.882-beta 20 Apr 2025 none MIT — Details →
9.0.881 20 Apr 2025 M1 MIT Yes Details →
9.1.878-beta 29 Jan 2025 none MIT — Details →
9.0.876 29 Jan 2025 M1 MIT Yes Details →
9.0.873 28 Jan 2025 M1 MIT Yes Details →
8.2.871-beta 26 Jul 2024 M1 MIT Yes Details →
8.1.870 26 Jul 2024 M1 MIT Yes Details →
8.1.866-beta 16 Apr 2024 M1 MIT Yes Details →
8.0.865 16 Apr 2024 M1 MIT Yes Details →
8.1.860-beta 18 Mar 2024 M1 MIT Yes Details →
8.1.844-beta 12 Feb 2024 M1 MIT Yes Details →
8.0.843 12 Feb 2024 M1 MIT Yes Details →
8.1.839-beta 01 Feb 2024 M1 MIT Yes Details →
8.0.838 01 Feb 2024 M1 MIT Yes Details →
8.1.812-beta 20 Dec 2023 M1 MIT Yes Details →
8.0.811 20 Dec 2023 M1 MIT Yes Details →
8.1.796-beta 24 Nov 2023 M1 MIT Yes Details →
8.0.795 24 Nov 2023 M1 MIT Yes Details →
8.1.748-beta 27 Oct 2023 M1 MIT Yes Details →
8.1.747-beta 24 Oct 2023 M1 MIT Yes Details →
8.0.746 24 Oct 2023 M1 MIT Yes Details →
8.1.745-beta 23 Oct 2023 M1 MIT Yes Details →
8.0.744 23 Oct 2023 M1 MIT Yes Details →
8.0.723 04 Oct 2023 M1 MIT Yes Details →
8.1.722-beta 04 Oct 2023 M1 MIT Yes Details →
8.1.719-beta 25 Sep 2023 M1 MIT Yes Details →
8.0.718 25 Sep 2023 M2 MIT Yes Details →
8.1.717-beta 25 Sep 2023 M1 MIT Yes Details →
8.0.692 03 Aug 2023 M2 MIT Yes Details →
8.0.691-beta 03 Aug 2023 M2 MIT Yes Details →
8.0.690-beta 03 Aug 2023 M2 MIT Yes Details →
8.0.645 17 Jan 2023 M2 MIT Yes Details →
8.0.601 12 Oct 2022 M2 MIT Yes Details →
7.1.542 12 Jul 2022 M2 MIT Yes Details →
7.1.512 03 Jun 2022 M2 MIT Yes Details →
7.1.509 01 Jun 2022 M2 MIT Yes Details →
7.1.488 24 Feb 2022 M2 MIT Yes Details →
7.1.475 25 Jan 2022 M2 MIT Yes Details →
7.0.473 06 Jan 2022 M2 MIT Yes Details →
7.0.470-beta 01 Dec 2021 M2 MIT Yes Details →
6.0.453 03 Nov 2021 M2 MIT Yes Details →
6.0.441 11 Aug 2021 M2 MIT Yes Details →
6.0.437 06 Aug 2021 M2 MIT Yes Details →
6.0.430-beta 14 Jun 2021 M2 MIT Yes Details →
6.0.423-beta 12 Jun 2021 M2 MIT Yes Details →
6.0.409-beta 23 Apr 2021 M2 MIT Yes Details →
5.0.404 23 Apr 2021 M2 MIT Yes Details →
5.0.376 15 Jan 2021 M2 MIT Yes Details →
5.0.372 23 Dec 2020 M2 MIT Yes Details →
1.0.4925.29815 — M2 L1 non-standard Yes Details →
1.0.4927.30873 — M2 L1 non-standard Yes Details →
1.1.5243.28448 — M2 L1 non-standard Yes Details →
1.1.5297.28403 — M2 L1 non-standard Yes Details →
1.1.5338.17998 — M2 L1 non-standard Yes Details →
2.0.5449.20550 — M2 L1 non-standard Yes Details →
2.0.5548.24932 — M2 L1 non-standard Yes Details →
2.0.5595.22183 — M2 L1 non-standard Yes Details →
2.0.5595.30325 — M2 L1 non-standard Yes Details →
2.0.5623.30465 — M2 L1 non-standard Yes Details →
2.0.5735.24296 — M2 L1 non-standard Yes Details →
3.0.5781.31354-beta — M2 L1 non-standard Yes Details →
3.0.66-beta — M2 L1 non-standard Yes Details →
3.1.67-beta — M2 L1 non-standard Yes Details →
3.1.75-beta — M2 L1 non-standard Yes Details →
3.1.76 — M2 L1 non-standard Yes Details →
3.1.79 — M2 L1 non-standard Yes Details →
3.1.91 — M2 L1 non-standard Yes Details →
3.1.93 — M2 L1 non-standard Yes Details →
3.1.98 — M2 L1 non-standard Yes Details →
3.2.100-beta — M2 L1 non-standard Yes Details →
3.2.103 — M2 L1 non-standard Yes Details →
3.2.105 — M2 L1 non-standard Yes Details →
3.2.96-beta — M2 L1 non-standard Yes Details →
3.3.122-beta — M2 L1 non-standard Yes Details →
3.3.125-beta — M2 L1 non-standard Yes Details →
3.3.126-beta — M2 L1 non-standard Yes Details →
3.3.127-beta — M2 L1 non-standard Yes Details →
3.3.128-beta — M2 L1 non-standard Yes Details →
3.3.129-beta — M2 L1 — Yes Details →
3.3.130-beta — M2 L1 — Yes Details →
3.3.131-beta — M2 L1 — Yes Details →
3.3.132-beta — M2 L1 — Yes Details →
3.3.142 — M2 L1 — Yes Details →
3.3.143-beta — M2 L1 — Yes Details →
3.3.144-beta — M2 L1 — Yes Details →
3.3.145-beta — M2 L1 — Yes Details →
3.3.146-beta — M2 L1 — Yes Details →
3.3.147-beta — M2 L1 — Yes Details →
3.3.148-beta — M2 L1 — Yes Details →
3.4.152-beta — M2 L1 — Yes Details →
3.4.156 — M2 L1 — Yes Details →
3.5.168-beta — M2 L1 — Yes Details →
3.5.169-beta — M2 L1 — Yes Details →
4.0.179 — M2 L1 — Yes Details →
4.0.180 — M2 L1 — Yes Details →
4.0.181 — M2 L1 — Yes Details →
4.0.182 — M2 L1 — Yes Details →
4.0.183 — M2 L1 — Yes Details →

The newest 120 of 144 versions Vulert tracks. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2021 1
  • 2023 1
  • 2026 1

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 1 of the 3 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for HtmlSanitizer

The 3 most severe of 3 vulnerabilities recorded for this package

Search all 3 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Template Tag Bypass Vulnerability in HtmlSanitizer 6.3 medium 9.0.892 03 Feb 2026
CVE-2020-26293: XSS in HtmlSanitizer 6.1 low 5.0.372 04 Jan 2021
CVE-2023-44390: HtmlSanitizer vulnerable to Cross-site Scripting in Foreign Content 6.1 medium 8.0.723 04 Oct 2023

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About HtmlSanitizer

Is HtmlSanitizer safe to use?

Vulert records 3 vulnerabilities for HtmlSanitizer in NuGet: 0 critical, 0 high, 2 medium and 1 low. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

What is HtmlSanitizer's Vulert package health score?

Vulert scores HtmlSanitizer 80/100, which reads as in good shape. The score weighs the vulnerability record (40), maintenance and release cadence (25), adoption from dependents and stars (20) and community signals such as the OpenSSF scorecard and forks (15).

Is the latest version of HtmlSanitizer affected?

No. 9.2.1039, the version you would install today, has no vulnerabilities on record against it. Earlier releases do — the version table above lists each release with what affects it.

Which version of HtmlSanitizer should I use?

9.2.1039 is the version Vulert recommends for the affected releases. The version table above lists every release with the vulnerabilities recorded against it, so you can confirm the range you actually run.

How many vulnerabilities does HtmlSanitizer have?

3 vulnerabilities are recorded for HtmlSanitizer in the NuGet ecosystem: 0 critical, 0 high, 2 medium and 1 low. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new HtmlSanitizer vulnerabilities disclosed?

1 vulnerability was recorded for HtmlSanitizer in the last 12 months, and the oldest entry in this database dates to 04 Jan 2021. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of HtmlSanitizer are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor HtmlSanitizer for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the HtmlSanitizer version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.