#VU26431 Cross-site scripting in Apple Safari - CVE-2020-3902

Vulnerability identifier: #VU26431

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-3902

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apple Safari
Client/Desktop applications / Web browsers

Vendor: Apple Inc.

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. 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

Apple Safari: 0.8 - 0.9, 1.0 - 13.0.3, 2 - 2.0.4, 3 - 3.52, 4 - 4.31, 5.0 - 5.34, 6.0 - 6.2.8, 7.0 - 7.1.8, 8.0 - 8.0.8, 9 - 9.1.3

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External links
https://seclists.org/fulldisclosure/2020/Mar/35
https://support.apple.com/en-eg/HT211104

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.