Cross-site scripting in SVG Sanitizer extension for TYPO3



Published: 2020-05-15
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-11070
CWE-ID CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		SVG Sanitizer
Web applications / Modules and components for CMS

Vendor TYPO3

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cross-site scripting

EUVDB-ID: #VU27936

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-11070

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in SVG markup. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SVG Sanitizer: 1.0.0 - 1.0.2

CPE2.3 External links

http://github.com/TYPO3GmbH/svg_sanitizer/security/advisories/GHSA-59cf-m7v5-wh5w
http://typo3.org/security/advisory/typo3-ext-sa-2020-008/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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