Vulnerability identifier: #VU29004
Vulnerability risk: Low
CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/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 user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user is able to add JavaScript to posts in the block editor and execute arbitrary 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: 5.0 - 5.0.9, 5.1 - 5.1.5, 5.2 - 5.2.6, 5.3 - 5.3.3, 5.4 - 5.4.1, 4.4 - 4.4.22, 4.3.0 - 4.3.23, 4.2 - 4.2.27, 4.1 - 4.1.30, 4.0 - 4.0.30, 4.5 - 4.5.21, 4.6 - 4.6.18, 4.7 - 4.7.17, 4.8 - 4.8.13, 4.9 - 4.9.14, 3.9 - 3.9.31, 3.8 - 3.8.33, 3.7 - 3.7.33, 3.5 - 3.5.2, 3.4 - 3.4.2, 3.6 - 3.6.1, 3.1 - 3.1.4, 3.0 - 3.0.6, 3.3 - 3.3.3, 3.2 - 3.2.1
External links
http://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.