4.6

CVSS Score

3.1

-

CVSS Score

Basic Information

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GHSA-86r8-4g3w-7xjp

GHSA-86r8-4g3w-7xjp: Cross-Site Scripting in TYPO3 Backend

Failing to properly encode user input, some backend components are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability.

(GitHub Advisory)

Miggo Vulnerability Database

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GHSA-86r8-4g3w-7xjp

GHSA-86r8-4g3w-7xjp:

4.6

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
typo3/cms	composer	>= 6.2.0, < 6.2.26	6.2.26
typo3/cms	composer	>= 7.6.0, < 7.6.10	7.6.10
typo3/cms	composer	>= 8.0.0, < 8.2.1	8.2.1

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The provided vulnerability information lacks concrete technical details required to identify specific vulnerable functions. There are no commit diffs, code examples, or file paths showing where improper encoding occurred. While the CWE-79 indicates XSS through improper input neutralization, TYPO3's backend architecture contains numerous components that handle user input. Without seeing the actual patched code changes or security bulletin details demonstrating which components added output encoding, we cannot reliably identify specific functions with high confidence. The vulnerability likely exists in backend view helpers or template rendering components, but this remains speculative without implementation details.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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