Vulnerability identifier: #VU23575
Vulnerability risk: Low
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
WordPress
Web applications /
CMS
Vendor: WordPress.ORG
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 well-crafted links within the wp_targeted_link_rel() function in wp-includes/formatting.php. A remote attacker can inject 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
WordPress: 5.3, 4.5 - 4.5.19, 4.6 - 4.6.16, 4.7 - 4.7.15, 4.8 - 4.8.11, 4.9 - 4.9.12, 5.0 - 5.0.7, 5.1 - 5.1.3, 5.2 - 5.2.4
External links
http://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
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.