CVE-2022-36020
Global infos:
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.
CVE Status: Modified
References:
Metrics:
| Attribute | Value |
|---|---|
| Attack Complexity | LOW |
| Attack Vector | NETWORK |
| Availability Impact | NONE |
| Base Score | 6.1 |
| Base Severity | MEDIUM |
| Confidentiality Impact | LOW |
| Integrity Impact | LOW |
| Privileges Required | NONE |
| Scope | CHANGED |
| User Interaction | REQUIRED |
| Vector String | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Exploitability Score | 2.8 |
| Impact Score | 2.7 |
| Source | [email protected] |
| Type | Secondary |