#VU21707 Cross-site scripting in Bootstrap - CVE-2016-10735

Vulnerability identifier: #VU21707

Vulnerability risk: Low

CVSSv4.0: 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:P/U:Clear]

CVE-ID: CVE-2016-10735

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Bootstrap
Web applications / JS libraries

Vendor: Bootstrap

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 passed via the "data-target" attribute. 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

Bootstrap: 3.0.0 rc1 - 3.3.7

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External links
https://access.redhat.com/errata/RHSA-2019:1456
https://blog.getbootstrap.com/2018/12/13/bootstrap-3-4-0/
https://github.com/twbs/bootstrap/issues/20184
https://github.com/twbs/bootstrap/issues/27915#issuecomment-452140906
https://github.com/twbs/bootstrap/pull/23679
https://github.com/twbs/bootstrap/pull/23687
https://github.com/twbs/bootstrap/pull/26460

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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. However, proof of concept for this vulnerability is available.