XSS in sanitize-url



Published: 2022-08-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-23648
CWE-ID CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
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sanitize-url
Web applications / JS libraries

Vendor Braintree

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Cross-site scripting

EUVDB-ID: #VU66868

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-23648

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 sanitizeUrl() function. A remote 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

sanitize-url: 1.0.0 - 5.0.2


CPE2.3 External links

http://snyk.io/vuln/SNYK-JS-BRAINTREESANITIZEURL-2339882
http://github.com/braintree/sanitize-url/pull/40
http://github.com/braintree/sanitize-url/pull/40/commits/e5afda45d9833682b705f73fc2c1265d34832183
http://github.com/braintree/sanitize-url/blob/main/src/index.ts%23L11
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2PFW6Q2LXXWTFRTMTRN4ZGADFRQPKJ3D/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HLAQRRGNSO5MYCPAXGPH2OCSHOGHSQMQ/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36GUEPA5TPSC57DZTPYPBL6T7UPQ2FRH/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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