CVE-2022-36020— Bypass of Cross-Site Scripting Protection in typo3/html-sanitizer
Quick assessment
Affected
TYPO3 html-sanitizer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
TYPO3是瑞士TYPO3协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 的 html-sanitizer存在跨站脚本漏洞，该漏洞源于无法过滤和清除在带有特殊HTML注释的序列中使用的恶意标记。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2022-36020
Vulnerability Information
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Vulnerability Title
Bypass of Cross-Site Scripting Protection in typo3/html-sanitizer
Source: CVE Program / CVE List V5
Vulnerability Description
The typo3/html-sanitizer package is an HTML sanitizer, written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. Due to a parsing issue in the upstream package `masterminds/html5`, malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows for a bypass of the cross-site scripting mechanism of `typo3/html-sanitizer`. This issue has been addressed in versions 1.0.7 and 2.0.16 of the `typo3/html-sanitizer` package. Users are advised to upgrade. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
TYPO3 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3是瑞士TYPO3协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 的 html-sanitizer存在跨站脚本漏洞，该漏洞源于无法过滤和清除在带有特殊HTML注释的序列中使用的恶意标记。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TYPO3 | html-sanitizer | >= 1.0.0, < 1.0.7 | - |
|
II. Public POCs for CVE-2022-36020
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-36020 (1)
Vendor Advisories for CVE-2022-36020 (1)
-
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235 x_refsource_CONFIRM
Vendor Pages for CVE-2022-36020 (1)
Other References for CVE-2022-36020 (1)
-
https://packagist.org/packages/masterminds/html5 x_refsource_MISC
Same Patch Batch · TYPO3 · 2022-09-13 · 6 CVEs total
| CVE-2022-36107 | 6.5 MEDIUM | Stored Cross-Site Scripting via FileDumpController |
| CVE-2022-36108 | 6.5 MEDIUM | Cross-Site Scripting in typo3/cms-core |
| CVE-2022-36104 | 5.9 MEDIUM | Denial of Service via Page Error Handling in TYPO3/cms |
| CVE-2022-36106 | 5.4 MEDIUM | Missing check for expiration time of password reset token in TYPO3 |
| CVE-2022-36105 | 5.3 MEDIUM | User Enumeration via Response Timing in TYPO3 |
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Same product: html-sanitizer
Same weakness: CWE-79
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V. Comments for CVE-2022-36020
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