#VU8607 Cross-site scripting in Bootstrap

Vulnerability identifier: #VU8607

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: N/A

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 in the "html" option for "popovers/tooltips" when grabbed with jQuery's .attr() method. 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
Update to version 2.1.0.

Vulnerable software versions

Bootstrap: 1.0.0 - 1.4.0, 2.0.0 - 2.0.4

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External links
https://snyk.io/vuln/npm:bootstrap:20120510 
https://github.com/twbs/bootstrap/pull/3421
https://github.com/twbs/bootstrap/commit/f836473129819c2e348f821ed268451b9b8bf2e4

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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.