#VU8511 Cross-site scripting in WordPress - CVE-2017-14718

Vulnerability identifier: #VU8511

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-2017-14718

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WordPress
Web applications / CMS

Vendor: WordPress.ORG

Description

The vulnerability allows a remote attacker to perform cross-site scripting attacks.

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

Mitigation
Update to version 4.8.2.

Vulnerable software versions

WordPress: 4.8 - 4.8.1

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External links
https://wordpress.org/news/2017/09/wordpress-4-8-2-security-and-maintenance-release/

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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.